Unlockable
Marathon Man (40)
Locate and access all Terminals in the Campaign.
Used Car Salesman (5)
Destroy a vehicle that has three enemies in it in a ranked playlist or in campaign.
Headshot Honcho (5)
Kill 10 enemies with headshots in a ranked free for all playlist or in campaign.
Fear the Pink Mist (5)
Kill 5 enemies with the needler in a ranked free for all playlist or in campaign.
We’re in for Some Chop (5)
Destroy an enemy vehicle with equipment in a ranked playlist or in campaign.
Too Close to the Sun (5)
Destroy an enemy banshee with the spartan laser or missile pod in a ranked playlist or in campaign.
I will give you some more soon. That's all for today.
note from sam: remember if you need any other help comment.