After hours of being dragged by the current, he finally hit something and stopped.
Once he regained consciousness, he realized he was stuck against some kind of filter. He kicked it in, and the current kept carrying him. All the way into a large metal box of some kind.
He opened the hatch on top, climbed out, and fell to the ground. He was finally out of the damn water.
But where the hell was he? A lab of some sort?
After stressful days, Zeno likes to take a nightly walk around the ARK facility. He explores and further familiarizes himself with the layout of the underground laboratories, making sure that he is always able to make it back to his makeshift office outside of PANDORA. He had taken over Spencer's former office since the old man would never be using it again.
It was on this nightly walk, cigarette in hand that he heard a racket coming from one of the lower levels of the vacant facility. He strolled down the hallway, reaching the Water Filtration System room. He tosses his cigarette off to the side before flipping the lights off, using his superior night vision to track the commotion.
He draws his gun, readying to fire when the man speaks to him. His voice distorted by the robot-esque armor he is wearing. He takes heed, knowing nothing about the man who had just stumbled in.
"Who are you? Speak." His voice is raspy, deep from not speaking for hours.
He pulls the hammer back on Redemption. He wasn't sure if the gun was powerful enough to penetrate the rusty helm, but from close range he would have better luck than if he had spotted him from across the room.