Game section: Guardian Takedown
Location: After entering the temple, after the first slide section, where the first ammo shop and med station is located.
If you walk up the inclines on the two sides of the ammo machine, and then drop down on the other side of the vegetation covered geometry, there is no way back to the ammo machine. There is an invisible impassable barrier. Projectiles from the guns go through, but the character cannot walk back to the ammo/med machine.