Maverick
Ultra rare0.8%GrindOptionalMulti-player
Teamed up in a vehicle to kill 30 enemies in Unconfirmed co-op.
Co-op: in the Unconfirmed mission, you and a teammate share a vehicle (one drives, one guns) and rack up 30 kills together from it. Grab a Warthog or Gungoose with a partner and mow down the Covenant across the mission's open stretches. Needs a second player crewing the vehicle with you - hence co-op.
30 to collect