Now I don't usually upload pics from Garry's Mod, but I think this one turned out nice enough to be uploaded. Both of the characters, and the weapon are from a game called Killing Floor, and the environment is from Half-life 2.
This is really bloody awesome! Btw, where did you get the models? I found some through google, but it's just default skins and there is no PAT or HUSK and there also aren't all weapons.