Go Ape Shiv Achievement in Halo: The Master Chief Collection

Brutes are known to descend into a highly aggressive, berserk killing-rage when all of their pack members have been killed. As such, they will drop their weapons and begin to charge towards you with no remorse. Their strength and aggression while berserk makes them as dangers as Hunters, especially since Brutes will charge at vehicles and hijack them.

After you kill all but one Brute in a pack, be prepared to engage in close-quarters combat with the berserk Brute. The missions “Gravemind” and “Uprising” present the most opportune moments when attempting this achievement. As a general tip, it’s always best to jump over the Brute as they charge towards you. If you’re quick enough, you can then turn around and melee their back/side, thus killing them in one or two hits. Either way, after you melee kill a berserk Brute, this achievement will unlock.