When Mister Chief talks, you listen. Mister Chief explains to us just what hell Halo 5's REQ system is all about.

The REQ System rewards players for killing dudes in Halo 5: Guardians' multiplayer modes. The rewards come in the form of REQ packs. Each pack contains either a cosmetic, permanent and one-time upgrades that you can use during Warzone and Arena.

Halo 5: Guardians heads to Xbox One on October 27.