Thats one of the reasons I love Halo so much. Every single game has had split-screen co-op campaign, and 4 player split-screen online and local multiplayer.
However I don't think there has ever been a full retail game that had 4 player split-screen co-op campaign. I know Halo 3 can get up to 3-player split-screen co-op and maybe a few xbla can but 4 player is unheard of.
The definitive evidence that video games turn people into mass murderers








