Help me find a horror (arg) video

It was settled in the map Turbine, the pov was of an engi like playing, after that getting chased by a creepy thing, making loops around the center if the map, the "creepy thing" looked similar to the serverblight as i remember. That's all i can remember it being.

Also he had a sentry on top of one of the containers, that didn't react to the creature that engineer was followed by