 In Halo multiplayer, people who are not on the same team cannot  share a vehicle like the Warthog jeep. The scene in which Simmons  (Maroon colored armor) jumps into the Warthog driven by Grif (Orange  colored armor) was shot with each character entering the warthog at  different times. The "Camera" remained in the same spot and the two  clips were spliced together, each filling about half of the screen,  in post