In the Extinction game mode you can unlock perks/upgrades by spending "teeth".
Some of these perks, such as the ark pistol attachment and cryptid ammo greatly improve your chances at beating a map. Of course, these better upgrades are very expensive (100+ teeth, up to 1000 teeth I believe).
How can I farm teeth in order to get these expensive upgrades as soon as possible?
Best Answer
Relics are your best friend. Each relic you run increases the amount of teeth you get from completing a game. When I was running with decent people, I would generally run eight or nine. You can run pistols only very easily on point of contact (which is what I would recommend farming on) if you use the revolver, and never get the akimbo upgrade (demolishes your accuracy for negligible benefit at close range) or you can ditch everything but the grenade turret (all relics but the no machines relic), as the grenade turret is very OP on point of contact. As with all of these tactics though, you'll want to be playing with people that have some idea what they're doing. Playing with randoms may warrant taking off a couple of relics, depending on how skilled you are. Also there are several things you can do on a game to game basis to get more teeth, such as getting a completionist bonus by perfectly completing all challenges, and getting kills (as every few hundred kills or so you earn a tooth regardless of what point you are at in a game.)