Is there anyone who playd Underhell? Now imagine it in Black Mesa facility. How cool it would be?
If someone doesnot know it, it is a amnesia, fear, survival rpg like game(mod for hl2).
youtube.com/watch?v=lkhBvLxutLU
Devs, just
youtube.com/watch?v=ZXsQAXx_ao0
Nah, man.
How would that even be done?
exactly it is like in underhell chapter 1, ammo is low, it is more like survival, + have rpg like quest. I always wanted an rpg like black mesa game, or outlast like one. You could hide from hecu, perfect stealth game. Too bad this doesnot exist in current game.
Plus i would add Infra like puzzles ,and details to the game.
In details i mean, in black mesa there never was something like you have to use props for progress, actual props are useless. Game is no more than beautiful version of half life. That is all. There never was something like pick up a keycard to open a door(actually you cant even close doors ingame,or most of the doors) or read a code from a paper, something like in Gone Home. Only pros is you can pick up sentry gun. 
At least you should kill a headcrab for throwing a monitor on him, but no…
That is what CC was trying to achieve you know. They wanted to overhaull the game while keeping gameplay as close as possible to the original, they might’ve played with the physics a bit here and there but they did not want to make it a crucial part of gameplay unlike half life 2 or add new mechanics like UH. I mean even multiplayer is getting quite close to half life’s.
A survival map could certainly be made in Black Mesa, but it’d lack just about everything I’m sure you’re looking for with this, such as inventory and “intuitive” stealth. However, things like needing to find a keycard or a paper with the code on it could certainly be done in some respect, though those sort of things would sorta just be out of place for what’s supposed to be, as you said yourself, a “beautiful version of Half-Life.” No reason a mapper making their own campaign couldn’t do it, though. Also:
Dunno what you’ve been doing, but I’ve managed to gib headcrabs from throwing an empty water cooler jug on them.
Founded in 2004, Leakfree.org became one of the first online communities dedicated to Valve’s Source engine development. It is more famously known for the formation of Black Mesa: Source under the 'Leakfree Modification Team' handle in September 2004.