How on earth do i get to the Sarcophagus, i have found the door to the underground but can't find the code for it or the duty recon team. Can anyone help me out!
I assisted the army against the monolith, and after a couple of save/reload attempts to keep the Lieutenant alive he lead me to the higher ranking guy where you get to drive the BTR and when that's complete the military guy in charge gives you the door code.
I got the code off a dead monolith guy. After the initial assault on the gate if you go to the far right after killing the mutant waves there is a monolith encampment. Kill them all and loot corpses until you get the code message along with a bunch of stash locations.