So I have a problem with cross modding and I realy don't know why.... every time I try to cross mod and when I take the cross mod of others it never work... I've tried the m9 to minigun and the minigun didn't show out and I was unable to fire and YES I KNOW HOW TO INJECT AND MAKE THE MODS WORK CORRECTLY the problem is not me, its combat arms or his folder so please help me...