[REQUEST] ps3 hacks?

My brother and his buddies have ps3, but no online, so is there any hacks, or mods, that I could download to flash, then take to him, for sinlge player, co-op zombie mode, or multiplayer offline, dont know what its called, I dont play cod. I am about to go over there, so any help, even a NO, would please my efforts.

ok hej thanks for the quick reply, I am going to go over there, and copy the game files onto disk, and see if I can mod them somehow, the same way I / we mod on CA ,and what not, maybe find the zombie dtx files are brighten them or something,. worth a shot, anyways thanks
/request close, delete or w/e