EDIT: Adding: Corpses should be "under" enemies on the battlefield. When an enemy is standing on top of several corpses, they are often very hard to target with the mouse, especially if their outline moving (like when stunned), because the mouse considers the corpses to be a higher priority for clicking.
Shouldn't caltrops make noise? As it is, I can throw some right at the feet of an enemy without triggering combat. Flares don't seem to draw attention either.
I still say we need a way to easily generate noise, like shooting a gun at nothing or just yelling. I know there are grenades, but those cost some money and you can blow yourself up accidentally. There's TNT as well, I know.
Is there any particular reason we can't poison a combat knife?
Down in GMS, in the room where the two raiders are keeping the old man hostage, the old man turns hostile if you use quick tinkering to place a beartrap (even if he doesn't step on it), and it's an uncontrolled zone. That doesn't seem right to me. It took me a long time to figure out why his outline was turning red.
Speaking of quick tinkering; it's probably too good. I think it should have some AP cost, perhaps modified by dex.
Enemies don't go into alert when they trigger a trap in an area they are familiar with; shouldn't they turn orange-eyed and go looking around? I can slowly whittle groups of enemies to death with traps without ever getting into a fight, and it just feels very cheap. Traps are cheap and plentiful. Sometimes the same patrolling enemy will consistently run into traps in the SAME PLACE until he dies. I mean, I don't do that if I see that it's the case, but it's there.
Turning hopper meat into hopper steaks, otherwise why do they drop it? A free health hypo at the very beginning of the game?
Selling combat utilities (nets, t knives) and "junk" items (rags, bottles, bolt triggers); I get why nobody wants to buy junk, but maybe one person in junkyard who buys them from you in bulk via dialogue options? Not a big deal, there's infinite money in the game.
You can enter stealth in combat and use snipe against an enemy, even if you did so right in front of them and they can still see you. As long as you aren't damaged (or just attacked? not sure) or otherwise out of stealth before attacking (can't even use it unless you are "stealthed"). That seems wrong to me; I figure at the very least they shouldn't have a filled red eye for it to work against them.
Metal helmets: there should be some downside to shaded visors, like a worse perception and/or detection penalty. As it stands, there's no reason to use a regular visor aside from price and that's hardly an issue.
Is there any particular reason why shields can't be their own item/blueprint? Something you put in one of your weapon slots? They'd restrict to one-handed weapons and have armor penalties, of course.
Do tasers with higher quality shock generators require higher fortitude to resist? They ought to. Why aren't tasers something you can find? You can find cloaking devices.
Line of sight seems very strange. Sometimes an enemy can shoot me from where they are, even if I can't shoot them from where I am, when range isn't a factor. Sometimes I'll be in the first square around a corner and still get hit.