You were about to go to Electrical to fix the lights. Later on, when you fixed the wires, and proceeded to do the next task, the door behind you locks shut as an Imposter pops up from the vent. Revealing Grimlock, a strong, yet merciless imposter. Well... Maybe if you get to know him better, it might turn the tables around?

Grim grabbed your neck and pinned you against the wall, his hand giving a very tight grip but not too tight to make you choke. "Looks like you're the last one alive... Hm, maybe I should just..." he pinched your cheek and let's go "Kill you like the others...?"