Guys if u search the dead bodies in the area where the supply truck got destroyed on crossing paths,u can get a AT launcher (it's a lock on type) with 3 missles,1 loaded and 2 in the dead bodies backpack or on the ground where u found the launcher or dead body with the launcher,I suggest loading a remove stamina mod for that mission ,cuz ull probably end up over burdened or have a very small amount of stamina