Harness the power of vehicular combat to turn the tide of battle in Warzone and the upcoming Warzone Firefight! Available for a limited time only, each Mechanized Mayhem REQ Pack unlocks three Rare or better Permanent vehicle certifications, if available*, and eight additional vehicle consumables. Prepare to deploy with some heavy-metal motivation! *Limited number of Permanent REQs available; if all have been unlocked, additional Single-Use REQs will be included. Only customizations and boosts may be used in Arena mode. Broadband internet required (ISP fees apply); Halo 5: Guardians game and Xbox Live Gold membership (sold separately) required.