When u spawn.. Go to the left thru the tunnel where dinklebot says "i got something. Its coming from building 5" as soon as ur at the bottom of the hill straight ahead when looking at building 5, you have a bunker. To the left where theres 3 cabal.. 2 legions and 1 phalanx you got another bunker. Now go into building 5 run up the small flight up steps into the back you have a Bunker on your left passed the enemies. Run up the other steps clear the enemies, then in that room you got a bunker where the major cabal comes from. Go to the window hop on the little platform, then jump again so you can get onto the roof. Run around to the left side where the hill is, a chest spawns there. Also sometimes a chest will spawn right at the entrance to the roof. Then just jump down and repeat the process to get all the chests. Good way to farm relic iron if your low on glimmer. Helps to use a glimmer enhancer too as youll be killing a lot of cabal.