Use the following trick to have three controllers assigned to the same team. Note: Player two must be using a wireless controller. Turn all three controllers on. Choose the same team with controllers one and two. Then, during the game, press Start on controller one. Enter the options menu, and turn off controller two. Using controller one, go to "Settings", then "Controller Setup". Slide controller three to the same team. Return to the pause menu. Just prior to resuming the game, turn controller two on again. If done correctly, that controller will rumble. All three players will now be on the same team after the next play.