Brovershield
From Halopedia, the Halo wiki
Brovershield
Brovershield is an achievement in Halo: Combat Evolved Anniversary. It is awarded for completing any level cooperatively on Heroic difficulty.[1] It is worth 20 gamer points. Receiving this achievement also unlocks the Standard Operating Brocedure achievement if the player hasn't completed a level cooperatively on Normal.
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