One team must drive across the ramp with warthogs. The other team needs to stop these warthogs with wraiths. These wraiths cannot shoot so they need to boost or bump into the warthogs to destroy them. All spartans in warthogs get a point when they make it across and are then teleported back to the start.
Communicating with your team is key. Assign your teammates to lanes, or drive through as a group. Try not to run into another warthogs.
Teams switch automatically with the use of scripting. The team with the most points wins!
Halo Master Chief Collection