When you find an STC for a weapon you can obtain the weapons from the Following games: Unreal Tournament, Red Alert 3, Gears of War, Halo, Starcraft, Frontlines, Endwar, Haze, Tiberium Wars, Quake Wars, Battlefield 2142, Bad Company, Battlefield 2, Fallout, and Battalion Wars. Also modern day weapons. Good luck finding one of these. Fat Chance. These weapons are always, always extremely hard to find, no matter what the GM says.