And have a hard time switching between Reach default controls and Halo 3 default controls, no worries, there is a control scheme for you. Walkie Talkie. Basically its the same as Reach default, but the X and B buttons are switched, push to talk is LB, and equipment is up on the d-pad. So if you enjoy the Reach default controls and want to play Halo 3, use Walkie Talkie. But if you use Bumper Jumper…then use Bumper Jumper its pretty much the most consistent control scheme out there.