The only noticable change from the PC and the Xbox I saw was the coloring. The Xbox has more green b/c of more grass and the PC was just more dry and less grass. Anyway, it's still the same game as the PC and boring as hell too. Stupid AI don't run. Haven't try MP, but I heard it save the game. Without MP, I bet this game would've been in the trash bin.
If you hate it, ignore it.