- last post: 01.01.0001 12:00 AM PDT
I found this...
complete the single player on any difficulty.
create a new profile.
begin a co-op game on the last level with the newly created profile as the 2nd player
when you reach a setion where you fly a banshee, the new profile must perform a barrel roll and a loop the loop
finish the campaign and the new profile can access the the FOUNDATION map when hosting split screen, system link or XBox live games.