Edit: Moving this to page 10. Updated with video links for each map and general text has been cleaned up and finished. If you could link to this post in the OP on page 1 Text that would be great, also maybe Wangman could link to it from the pitch bible on page 1.
This is a walk-through of the original Half-Life’s On A Rail chapter with the map names and what happens in each map chronologically along with screenshots and then links to a video play-through of the chapter.
This guide should make it much easier for people that don’t know every map name to know what’s being talked about in this thread and will no longer have to boot up the game to see how the original maps were. This is different from the pitch bible by Wangman in that it’s simply a log of what happens in the original On A Rail chapter. Use it for reference when needed.
Map names appearing in [COLOR=‘Red’] RED are ones that have been significantly cut down in Black Mesa’s version of On A Rail and thus may be re-envisioned and added back in with this Uncut. Note that the Crane blocking the rail tracks puzzle in C2A2A is being re-added, but otherwise this map mostly exists in Black Mesa. Other map names appearing in red may partially exist in Black Mesa, but have some sections left out that could be remade.
C2A2A[/SIZE]
https://tinyurl.com/abhxzp2
Full album of images for this map here.
https://www.youtube.com/watch?v=XiM98LVcovQ
Video play-through of this map here. Relevant until 2:15 in Video.
https://i.imgur.com/qg2rK.jpg
https://i.imgur.com/ASVbG.jpg
https://i.imgur.com/RQvGb.png
- Start of chapter. Lowered down on turntable elevator for the rail car. Track is flooded with electrified water.
https://i.imgur.com/X8RGo.png
https://i.imgur.com/jeomQ.png
https://i.imgur.com/AURBN.png
- Arcing electricity across the walls
https://i.imgur.com/g8XIZ.png
*Small side area with Magnum Ammo inside a breakable crate
https://i.imgur.com/rHOXM.png
https://i.imgur.com/Hvvci.png
- Electric wire hanging down directly over track.
https://i.imgur.com/LexnZ.png
https://i.imgur.com/pQSdf.png
- First track switch leads into track blocked by crane.
- Two Houndeyes and One Bullsquid in this room.
- There’s a Turret up inside the Control Room for the crane that shoots down at you. This draws your attention to the control area letting you know that that’s where you need to go to move the crane.
- Continuing on the rail past this area you will come to the second Track Switch. If you don’t shoot or change it you’ll simply loop back around past the crane again.
- If you do switch it you go forward instead to the area with the Crane Control Switch.
[COLOR=‘Red’]C2A2B2[/SIZE]
This is a sort of optional side area map. If you don’t shoot the second Track Switch to change it to going forward and instead turn sideways to loop back around you’ll come to this area on the way. Note that it can be skipped completely if you change the Track Switch and simply go forward instead.
https://tinyurl.com/aezaxcj
Full album of images for this map here.
https://youtu.be/hQKXrqaT4-k?t=7m26s
Video play-through of this map here starting at 7:25 in video. Relevant until 11.30 in video.
https://i.imgur.com/NdUwd.jpg
https://i.imgur.com/OLko5.jpg
https://i.imgur.com/bebNV.png
- There are several Houndeyes on this platform and once you go inside the hallway this map loads.
https://i.imgur.com/hK2R5.png
https://i.imgur.com/kfg22.png
- Bullsquid by dead Marines.
https://i.imgur.com/ZSkN1.png
https://i.imgur.com/L0FlQ.png
https://i.imgur.com/mgYjA.png
- Beneath the Rocket area. A Marine with a shotgun is fighting off Headcrabs that drop down and kill him.
- Another Bullsquid teleports into the hallway after you exit this area.
- Back in the hallway and then up the stairs you encounter a pack of Houndeyes in the room before the bridge.
https://i.imgur.com/o03BQ.png
https://i.imgur.com/CrSjd.jpg
https://i.imgur.com/CniT3.jpg
https://i.imgur.com/KvpHz.jpg
- Bridge over toxic waste with a Bullsquid and a Headcrab inside it. You hit a switch to extend the bridge and cross it, otherwise there’s a jumping puzzle of barrels you can use to cross or get back up if you fall.
https://i.imgur.com/ya337.png
https://i.imgur.com/yL8YH.png
- Several Barnacles after this.
https://i.imgur.com/3pcRY.png
https://i.imgur.com/ZTvQP.jpg
- Bullsquid by broken elevator with grenades and the first Satchel Charges. Two dead Marines by the Bullsquid.
- Backtrack to outside the hallway and get back on the tram and continue forward around the loop again past the crane blocking the track and when you come to the second Track Switch change it this time and you’ll come to
C2A2A (Continued)[/SIZE]
https://tinyurl.com/bxz76oh
Full album of images for this map here. (Image 17 onwards)
https://youtu.be/XiM98LVcovQ?t=2m15s
Video play-through of this map here starting at 2:15 in video. Relevant until 4:00 in video.
https://i.imgur.com/Xz5Ik.png
https://i.imgur.com/eRLs5.png
- Bullsquid and dead Marine.
https://i.imgur.com/yqZGl.jpg
https://i.imgur.com/O1k7f.png
- Multiple Barnacles over track going over toxic sludge. There’s a dead Marine body in the sludge if you fall in.
- Continue to next area with a Bullsquid and several dead Marines and a Headcrab. Health charger here.
- Stairs up to crane switch Control Room where the Turret was/is.
https://i.imgur.com/Hl82a.png
https://i.imgur.com/E2GqZ.png
https://i.imgur.com/6dxUU.jpg
- Hit switch to move the crane then get back on rail car and you hit the first track switch to move the tram onto the tracks the crane was blocking.
[COLOR=‘Red’]C2A2B1[/SIZE]
https://tinyurl.com/bd57qky
Full album of images for this map here.
https://youtu.be/XiM98LVcovQ?t=4m
Video play-through of this map here starting at 4:00 in video. Relevant until 6:50 in video.
https://i.imgur.com/o9zJX.png
https://i.imgur.com/fQLI0.jpg
https://i.imgur.com/u49fC.jpg
https://i.imgur.com/kYHI7.png
https://i.imgur.com/UCwp3.jpg
- Turntable rail car Elevator. Once you start going up there’s an Elevator alongside the lift with Two Marines on it also going up that shoot at you.
- Note that the Marine Elevator ends up going a story higher than the rail car Elevator.
- There’s also a small area half way up with another Marine and a Health Charger. You can get back down to it by ladder from the top.
https://i.imgur.com/ZOSdw.jpg
https://i.imgur.com/CUtb8.png
- Once at the top with the rail car there’s a Marine with an MP5 Grenade launcher waiting to ambush you.
- There’s also a malfunctioning Rail Switch that’s sparking here and has no effect when shot (used).
https://i.imgur.com/IyMbH.jpg
https://i.imgur.com/wvcaw.jpg
- Continue on rail car to an ongoing battle between the Marines and several Vortiguants.
- Both sides have a lowered Gate Boom (the kind you see at exits of car parks) and a switch. Each switch affects both gates and following either path will lead you to C2A2C.
- There’s a 50 Cal. Gun that you can mount to finish off the survivors (usually the Vortiguants)
https://i.imgur.com/bbDhd.jpg
https://i.imgur.com/BMVHD.jpg
- The upstairs area behind where the Vortiguants were has a battery charger guarded by a pair of Headcrabs.
- Note that this is also where the Marine Elevator came to a stop so if you didn’t kill them earlier they will be here.
https://i.imgur.com/Sddrm.jpg
https://i.imgur.com/Hdy8l.jpg
https://i.imgur.com/jfoZ3.png
https://i.imgur.com/xxY8U.png
- Go upstairs to find the Office Area. Here the Marines and Vortiguants continue fighting with about 3-4 of each in this area. Marine Radio here.
- Continue down the hall
[COLOR=‘Red’]C2A2C[/SIZE]
https://tinyurl.com/aal2mxz
Full album of images for this map here.
https://youtu.be/XiM98LVcovQ?t=6m50s
Video play-through of this map here starting at 6:50 in video. Relevant until 9:05 in video.
- More offices and a supply room.
https://i.imgur.com/WnIrK.png
https://i.imgur.com/7cPgZ.png
https://i.imgur.com/w1O8q.png
https://i.imgur.com/2iCWG.png
https://i.imgur.com/80VAU.png
- Stairs going down with a Marine at the bottom.
- Beneath these stairs is a grate that you can break and then climb down into a small area where you can witness a Marines vs. Vortiguants fight from underneath them. There’s a Headcrab down there that jumps at you.
- Two Tripmines over track.
- The Marines vs. Vortiguants battle area seen from above.
- Note that if you hadn’t gone upstairs through the Office area and instead raised the Gate Boom and continued on the rail car you’ll come across this fight and the Tripmines on the track and are able to bypass the Offices completely.
[COLOR=‘Red’]C2A2D[/SIZE]
https://tinyurl.com/a7u5ycz
Full album of images for this map here.
https://youtu.be/XiM98LVcovQ?t=9m4s
Video play-through of this map here starting at 9:05 in video.
https://youtu.be/7bgNV8iLj9M
Part 2 of video here. Relevant until 2:10 in video.
https://i.imgur.com/lJ0xw.png
https://i.imgur.com/r3xzp.jpg
- Back on the rail car.
- Come to a stop where Three Marines are waiting on the left to ambush you. They have blocked the rail with sandbags.
- Get off and go to hallway where more Vortiguants and Marines battle.
https://i.imgur.com/gLm0h.png
https://i.imgur.com/S4ALH.png
https://i.imgur.com/CXjBS.png
- Security Guard can be found in a small room that’s boarded up.
- Another Vortiguant teleports in when you exit this room.
https://i.imgur.com/HoDlF.png
https://i.imgur.com/7dDaD.png
https://i.imgur.com/hwxzz.png
- Small side room with two Soda Machines. The ceiling collapses and multiple Headcrabs jump down.
- Boxes to jump up into ceiling area and find Suit Batteries.
- This is really the only area that the Security Guard can be helpful for as he’s no help with the gun emplacement and can’t continue with you afterward.
https://i.imgur.com/4RWXE.png
https://i.imgur.com/nc2m6.jpg
- Around the corner is a HECU Mounted Gun inside a sandbag hut thing.
- “Surrender Freeman” is written on the wall.
- This area is the other side of the rail track that was blocked by sandbags.
- There are also more Tripmines covering the track here.
https://i.imgur.com/Zk3rO.jpg
https://i.imgur.com/RJjeM.jpg
https://i.imgur.com/gncc2.jpg
https://i.imgur.com/z0AT8.png
- Enter through Blast door to inside Rocket Silo.
- Another Tripmine is set across the blast door opening.
https://i.imgur.com/SbsO2.png
https://i.imgur.com/5BcGQ.png
- You go down one floor on a ladder here and kill a Marine waiting by another Blast Door.
https://i.imgur.com/YA2OI.png
https://i.imgur.com/ChEo3.png
https://i.imgur.com/fxBm6.jpg
- Beginning of new rail tracks with a rail car for you to use. Suit Charger here.
https://i.imgur.com/aJh11.png
https://i.imgur.com/YvXgm.jpg
https://i.imgur.com/HHKp5.jpg
- Start rail car and go forward into the next room which has Three Turrets.
- Turret Sensor Lasers over rail tracks before this room. You must duck under them to not set them off.
- Two Bullsquids in this room, one by a dead Marine.
https://i.imgur.com/j1SmU.png
https://i.imgur.com/nvQPP.png
https://i.imgur.com/B8TSt.png
https://i.imgur.com/Mmin0.png
- There’s a side room with a door with two more Bullsquids and Three dead Marines, a Headcrab and a Barnacle hanging down over one of the Marines bodies.
- “Your dead Freeman” written on the wall in this room.
- Continue on rail car to
[COLOR=‘Red’]C2A2E[/SIZE]
https://tinyurl.com/b4fn4l5
Full album of images for this map here.
https://youtu.be/7bgNV8iLj9M?t=2m9s
Video play-through of this map here starting at 2:10 in video. Relevant until 7:50 in video.
https://i.imgur.com/xC6nm.png
https://i.imgur.com/9DpfI.jpg
- Marine mounting a Rocket Launcher Turret shoots multiple rockets at you as you ride the rail car towards him.
- There’s a Tripmine across the tracks directly behind him.
- Another Tripmine across the tracks with “Die Freeman” written by it.
https://i.imgur.com/c4pl9.jpg
https://i.imgur.com/tyrNz.jpg
- Come to stop at an area with Six Vortiguants. The rail track is blocked by another lowered Gate Boom.
- Health charger and small Storage Area here.
https://i.imgur.com/vWPse.png
https://i.imgur.com/RZHcp.png
- Dead marine behind several ammo crates. Two Headcrabs jump down at you from the ceiling here.
- Behind the ammo crates are stairs leading up to the gate Control Switch.
- Two Tripmines on the stairs.
- Two Marines guarding the Control Room. These Marines have clearly barricaded themselves up in this room to both guard it and protect themselves from the Vortiguants downstairs.
https://i.imgur.com/eTYBE.jpg
https://i.imgur.com/HM5HP.jpg
https://i.imgur.com/d2p2h.jpg
- Hit the switch to lift two Gate Booms. One was blocking your original rail car that you came in on, the other a second new rail car on a separate track.
https://i.imgur.com/xMXgP.png
https://i.imgur.com/BbPNW.jpg
https://i.imgur.com/zPB2u.jpg
- If you backtrack here and get on your original rail car and go forward a Marine will then spawn on the new rail car and ride along side you shooting at you and then continue on
https://i.imgur.com/6L8IN.png
https://i.imgur.com/5MEG0.jpg
-
Your track will then lead to a dead end with the Dynamite trap.
-
Dynamite trap consists of three packages of Dynamite stuck to the wall where you come to a dead end on the tracks. A Marine is waiting by a Detonator and pushes it when you come setting off the Dynamite packages one by one. You can then backtrack and follow the other tracks to the next area.
-
Note that the sandbags behind the Dynamite trap can actaully be seen from the other side when you first arrive at this map. This both shows that the rail system makes logical sense and that the Marines have sandbagged this area for the sole purpose of creating an ambush point.
-
If you don’t backtrack here and simply get on the new rail car and go forward you will continue to the next area which is:
- Rail car stops at another lowered Boom Barrier.
- Room that appears to be a rail car unloading dock. Full of Marines behind several boxes and
- Mounted HECU Gun in a sandbag hut.
- There’s a 50 Cal Gun you can use to fight the HECU Gun and the Marines with.
https://i.imgur.com/AOXaM.jpg
https://i.imgur.com/X0W4X.png
- After clearing all of them you climb up a small ladder and find the Switch to lift the lowered Boom Barrier.
https://i.imgur.com/iIza4.jpg
https://i.imgur.com/FrMcH.jpg
- Continue on Rail Car to find another Turntable Rail Car Elevator that goes up.
https://i.imgur.com/Lu2aw.jpg
https://i.imgur.com/uZyK3.png
https://i.imgur.com/U9vnB.png
https://i.imgur.com/heJrd.jpg
https://i.imgur.com/Ccv2u.jpg
https://i.imgur.com/ygwMF.jpg
-
There’s also a regular human Elevator that you can use if you stop the rail car first. This Elevator goes up to a room blocked with a bunch of Explosive Crates. If you manage to kill these crates without dying it will kill a Marine that was standing by them. You can then take a ladder down to another Marine or take it up to the top where the Turntable Lift would have stopped. If you simply ignore the human Elevator and take the rail car one both of these Marines will shoot at you while you’re going up.
-
Continue on Rail Car tracks.
https://i.imgur.com/OnQDa.jpg
https://i.imgur.com/zQCmu.jpg
https://i.imgur.com/89sde.jpg
- Electricity arcing across the track from a Generator.
- This damages you and you have to time going forward with the alternating of the Electricity.
- Two Tripmines over track.
[COLOR=‘Red’]C2A2F[/SIZE]
https://tinyurl.com/a8zbseq
Full album of images for this map here.
https://youtu.be/7bgNV8iLj9M?t=7m50s
Video play-through of this map here starting at 7:50 in video.
https://youtu.be/CFFB90E-pwI
Part 2 of video. Relevant until 0:15 in video.
https://i.imgur.com/axeSX.jpg
https://i.imgur.com/8jpEi.png
- Room with two sets of Crates being moved across the rail track.
- Two Marines behind a box in this room that ambush you as you get closer to them.
- Another lowered Boom Barrier stops you in this room. The switch is right there next to where the Marines were and you simply use it to raise the barrier and continue on the rail car.
- Rail Track goes up a small incline and then into another room with Two sets of Crates being lifted over the track again. There are Turret Sensor Lasers on either side of this room.
https://i.imgur.com/UBMcb.jpg
https://i.imgur.com/BnaGz.jpg
- Turrets in this room. Only activated by shooting them or triggering the laser by coming in contact with it.
https://i.imgur.com/ezjDm.png
https://i.imgur.com/MEIOI.png
- Continue forward on the rail car and another Marine with a mounted Rocket Launcher Turret shoots down the hall at you as you approach.
- More electricity arcing across the tracks here
- Again you must time your advancement with the alternating of the two electricity arcs
https://i.imgur.com/XYQ9j.png
*come to another Track Switch. If you don’t hit the switch you simply loop back into the room with the Turret and moving Crates and then back by the switch again.
- Hit the switch to continue forward on the rail car.
https://i.imgur.com/VENJa.jpg
https://i.imgur.com/yncYN.jpg
https://i.imgur.com/LOPqx.jpg
- Come to a broken rail car Turntable Elevator that would have taken you down on it. Instead it’s clearly seen busted in pieces at the bottom.
- Must take ladder down instead.
[COLOR=‘Red’]C2A2G[/SIZE]
https://tinyurl.com/bhut9qp
Full album of images for this map here.
https://youtu.be/CFFB90E-pwI?t=15s
Video play-through of this map here starting at 0:15 in video. Relevant until 2:00 in video.
- Turret Sensor Laser covering the very bottom of the ladder. You can jump off without triggering it.
- There are Three Tripmines covering the doorway into the room where the broken Turntable lift is.
https://i.imgur.com/2UJgQ.png
https://i.imgur.com/VoSsM.png
https://i.imgur.com/ncU80.png
- Small room with two Zombies inside it that ambush you as you walk in. Health Charger in this room.
- You can break the glass windows and crawl out of the room and avoid dealing with the Tripmines.
- In this room there are Four Turrets, one in each corner. They are tied only to the Turret Sensor Laser and won’t target you unless you’ve triggered it or attack them.
- Follow the rail tracks with no tram. (You had to leave it up above)
- Come to another Mounted HECU Gun in a sandbag hut. There’s also a single Marine outside of the hut to deal with.
- This sandbag hut with the gun is blocking the large blast door that leads to the outside that the rail cars would have taken.
https://i.imgur.com/xxW8j.png
https://i.imgur.com/Ii5n4.jpg
- Small room with a radio that plays a constant static sound.
- Door to the outside where Two Marines stand facing the other way and have the speech about Gordon.
https://i.imgur.com/biOxE.jpg
https://i.imgur.com/o5rih.jpg
- Outside area with a Sniper up on the cliff and the other side of the blast door blocked rail car tracks.
- Sniper nest is seen where the cross-airs are in the second screenshot.
- You open the blast doors to the Missile Control area with the door switch
C2A2H [/SIZE]
https://tinyurl.com/beg9qsb
Full album of images for this map here.
https://youtu.be/CFFB90E-pwI?t=2m
Video play-through of this map here starting at 2:00 in video.
https://i.imgur.com/e27Hr.jpg
https://i.imgur.com/DrBoN.jpg
https://i.imgur.com/61wbU.jpg
- There’s Three Marines in the outside area here and a 50 Cal. Gun that you can use to kill them
https://i.imgur.com/UmT4e.jpg
https://i.imgur.com/NlxW1.jpg
- You enter the actual Launch Building and find the HECU have set a Dynamite trap for you
- If you come in contact with the laser sensors the Dynamite explodes killing you.
- Instead you must arrange the boxes such that you can bypass them and reach the top of the stairs. This is a puzzle element.
https://i.imgur.com/aE9CT.png
https://i.imgur.com/v2pXX.png
- Once inside there are Two Marines. You overhear one asking who ordered the operation and saying “I didn’t sign on for this shit, monsters yeah, but civilians?”
- There are multiple dead scientists inside
https://i.imgur.com/uypIv.png
https://i.imgur.com/YnLEW.png
https://i.imgur.com/99OO9.png
- You press the launch button and the rocket takes off just outside
- Afterwards you backtrack back outside and through the blast doors you came through to find
- The blast shield door to the rest of the rail system is now open
https://i.imgur.com/edqhA.jpg
https://i.imgur.com/55Jhm.jpg
https://i.imgur.com/lmc9I.jpg
- There’s another rail car Elevator, but you take the ladder down.
- Here you find another type of rail car and ammo. This is the end of On A Rail.