At Sundown achievements

Win a game where no other players get a kill

Win a game with a triple kill at the end

Play an Unranked online match

Play a match where you use 5 different weapons

Kill someone on a killing spree and get a killing spree yourself

Complete a Training Challenge

Win an Online match (Ranked or Unranked)

Kill someone on a killing spree

Play your first match

Play a game type other than Deathmatch, Timed, or Timed Deathmatch

Get Gold in all Training Challenges

Unlock everything