Portable medkits. Even if it’s just one or two. Gordon has more than enough space for all those guns and ammo, he should have room for at least one medkit.
Being able to use meds on allies might be nice.
On the note of meds you shoud be able to hold onto at least one or two extra batteries.
You should be able to turn the suit shielding on and off at whim, so you could save it for when it’s more necessary. Taking a couple of bullets here and there full force isn’t too bad if you’re saving shielding for something explosive up ahead.
More types of weapons, more ‘SCIENCE!’ (read: experimental hi-tech) weapons, and a return of the organic ones-and introduction of some new ones.
Many Combine stuffs seems to be cyborg/biomechanical so this wouldn’t be hard to do, and would be so cool. I loved the snarks and hivehand, and would love to see some more things in that vein.
Holding things in one hand and shooting with the other is a cool idea.
So is grabbing ledges-if it’s done right. Though not first person view Megman Legends has ledge grabbing (and a rather fast ‘pull-up’ animation) and it’s damn useful.
Some type of ‘wait’ and ‘out of my way’ commands when leading squads so they aren’t in your way as much, and you can prevent them from killing themselves to an extent.
Better aiming system for grenades.
I think the way grenades are dealt with in Metal Gear Solid: Peace Walker would work very well for half-life. It shows the trajectory of the grenade before you throw it.
https://www.youtube.com/watch?feature=player_detailpage&v=tPV3pwTrPv8#t=111s
RE: warpedfreeman
Indiana Jones!! LOL