Sanders and his men were trapped, being taken out by some unseen force; they had lost almost all their men to this threat.
The Colonel realized that he had been trapped inside, the barricade he had broken through was put back up, and he realized that there was a door.
The door was hidden behind the growing mold and instead, the path was blocked by items.
"Colonel, we need to get out of here," One of his men said, scared about what was going to happen if they were trapped here.
The Colonel would have loved nothing more than to exit this place but he realized that things wouldn't be so easy.
Strange noises could be heard from behind them, it was like the pipes in the wall were coming to life but that wasn't the case, something a lot worse was about to happen.
Sanders now understood why the water in here was higher than out there, they were about to be drowned.