Since the crashes have been mentioned, I will mention something that is almost as critical.
Serious problem:
Gore and corpses are able to interfere with the movement of NPC's and moving elevators/doors, e.g when the gargantua smashes two grunts against a wall with a car. The car gibs one, then returns to its original position as it can't reach the wall, stopping the gargantua from chasing the player. Similarly, when fighting the Gonarch, the Gonarch's escape can be blocked by corpses or gore on the ground. Those are some of the main "showstoppers" I noticed. In general, it also messes with NPC's a bit, but other than the scripted events, this is less of an immediate issue. Funny enough, the author of Brutal Doom encountered similar problems with doors and elevators being blocked by gibs in earlier versions of his mod.
General observations:
1: I didn't know that iron sights and crouching reduced recoil and increased accuracy until I tested it in the Zoo map, after playing through HL again with the mod. This seems to have tipped the odds against me as I frequently found the weapons in general very inaccurate, but I assumed this was just a balancing feature.
2: The otherwise awesome AI improvements seems to have introduced some wonkyness; NPC's will often not react when being shot, or take too long to attack the player or other NPC's once they see them. May be related to the corpse/gore.
3: Stepping on cockroaches can damage the player at least in some instances. This seems to have with some other things as well.
Future feature requests:
Make marines somehow tend to wounded comrades, as in the ones on the ground. Either reviving them, or maybe even just put them out of their misery if their wounds are too severe.
Other than that, as many others have told you, amazing job on the mod!
Ghebraant
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