The survival camps are part of the 80’s action movie themed mid season 3 update for Warzone and, like how Naratomi Plaza is connected to John McClane, these camps are a sign of John Rambo.
(They should have called it the John update…)
There are a number of survival camp locations across the Warzone map and, depending on what you find at the camps, you may be able to complete the Rambo POW dog tags challenge.
