Nearly impenetrable composite-concrete bunkers on the castle hill, holding the looted guns big enough to be unlocked.
As Carl marches down the smoldering hill toward the parlay, he passes the Posse's multiple fortified bunkers. They are built of some sort of composite concrete different from the castle itself, and are almost impenetrable.
Most of the looted guns are user locked and unusable without a Cracker Jack Scroll, but the bigger guns carry no such restriction, and those are the ones set up in the bunkers. Beneath his feet, the earthworks teams are still digging.
Squat emplacements of composite concrete, visibly different in material from the castle stone, dug into a smoldering hillside.
Hardened firing positions anchoring the castle's outer defense.