Is the gun randomly not shooting (even when you have ammo and after waiting a while to make sure it's not reload) a bug, or did you seriously make completely silently jamming a feature? Either way, unplayable. I need to be able to rely on my gun to shoot when and where I click, or have a way to check/unjam it.
your probably trying to move and shoot at the same time. just stay still when you want to shoot, if you move around youll notice the gun stops following your cursor. i think the reason thats the way it is, is because the whole point of the game is your sneaking around, your not meant to be some action hero or smth clearing out a bunch of enemies at once.