User blog comment:Argorrath/Call of Duty: Ghosts Devastation Achievements revealed/@comment-12521892-20140402183810/@comment-5.66.122.200-20140404073245

you can earn teeth by getting to different areas getting tons of kills and other stuff you can by upgrades out of them like start off with a locker key 40 teeth or 5% more damage 5 teeth the rhino thing costs nothing you have to build the hypno trap out of parts you can find in the game