Infinity Ward has explained how the new armory and teeth system for extinction works via their official call of duty website. Look through the Armory’s list and you’ll see a wide range of abilities with unlock costs as low as 5 all the way up to 50. There are a few different ways of acquiring Teeth, detailed below: Collecting Teeth: • Completing a map (+1) • Completing a map with a Relic (+1, whether you have one or all five active) • Completing with a player that has never completed a map before (+1) • Completing a map in Hardcore Mode (+1) • Take out 600 Cryptids (+1) • Obtaining Ranks 2, 6, 11, and 21 (+1 for each, only counted the first time that Rank is achieved) • Reaching a new Extinction prestige level (+1, plus another for each prestige level you have obtained prior to this update) Engineer Upgrade The Engineer lays down a stasis field that Cryptids cannot enter. Tank Upgrade Force Cryptids to momentarily attack the Tank, who is now invulnerable and able to stun enemies with melee attacks. Weapon Specialist Upgrade Experience an adrenaline rush, greatly increasing damage inflicted while keeping your bullet weapon clips completely topped off. Nearby allies also receive a modest damage boost. Medic Upgrade The Medic is surrounded by a therapeutic energy field. Allies inside the field are instantly healed or revived from last stand. Infinity ward has confirmed that there will be more upgrades within the next 2 extinction episodes that will be coming later this year with the Invasion and Nemesis DLCs.
