Bro Hammer

Brohammer is an achievement in Halo: Combat Evolved Anniversary. It is awarded for completing any level cooperatively on Legendary difficulty. It is worth 50 gamerpoints. Receiving this achievement also unlocks the Standard Operating Brocedure and Brovershield achievements if the player hasn't completed a level cooperatively on Normal or Heroic.

Trivia
The achievement is a reference to Carol "Foehammer" Rawley.