1. Open the editor.
2. Place the player.
3. Place an empty vehicle
4. Place a trigger, Activation: BLUFOR, Once, Present. Place nothing in the trigger area.
5. Create a fire team(or any type of group).
For the group leader:
6. Place a "Move" waypoint and sync it to the trigger.
7. Place a "Get in" waypoint on the empty vehicle.
8. Place another "Move" waypoint anywhere.
9. Preview the mission.
10. Get in the vehicle.
11. Drive the vehicle into the trigger and get out.