BTW: I, too, have built a weapon! I went to a military camp for awhile... we built so many guns! I helped build a Barrett 50., but it isn't quite as similar to the one in Call of Duty, it was a tactical version, a kind used in the Green Barret (Highest Division in the U.S Military), my uncle is in it! He is the 2nd best sniper... in the WORLD!
mine would be an old german 1942 anti tank rifle my grandpa has one of those he says it needs 3 men to carry and 3 men to operate it doesnt have any recoil cause how big the gun and round is