common.ff is for pc xbox 360 its ment for zombies but works on online aswell like xbox people make modded guns by it we can't do it on ps3 be thay hotswap there xbox but with ps3 common.ff give u more room add more functions or patchs and if u make common.ff editor for ps3 u can custom waw written like colour and change name maybe more thats what StrickerMoDz did or as we know him as HosterMoDz