need help with S.T.A.L.K.E.R

OK, so i got S.T.A.L.K.E.R and its epicnessawesomeisidy. BUT. I've seen a mod that adds more weapons and creatures to kill, but i have yet to find it (i don't know its name) i tried L.U.R.K mod but all it did was re-skin the weapons, change the graphics and get rid of my HUD >. anyone know what the mod i am looking for is named or has another mod i should look at?

Game: S.T.A.L.K.E.R shadow of Chernobyl

A STALKER weapons mod.

1:What is AMK Arsenal?

2:What is Oblivion Lost?

Point goes to AMK Arsenal, Oblivion Lost includes AMK and makes the game way better.