Halo: The Master Chief Collection

In the multiplayer menu of the game, you can choose a character model for online among the Spartans or Elites. Although many people choose the Spartans, to achieve this you need to choose the Elite model for multiplayer. After that, you need to win 10 multiplayer matches as Elite and the achievement will be yours. Although not stated in the description, this achievement can only be obtained in a matchmaking game.