Maybe apollo or aurora, either way it was one of them.
I was engineer, my friend was AI. I had broken into the ai chamber to upload a bunch of laws back when they were priority 1->x (where higher always trumped lower) to define things and change definitions ect.. End result, I had the laws set up to say that only humans were crew members, all nonhumans were xeno invaders no matter what their IDs said, and all xenos had to be purged from the station PLUS when asked to declare laws, it had a law stating that it should only declare the original laws (the ai had a processing delay with the copy paste which got people suspicious). There were three tarj crewmembers I think, I remember a janitor and i THINK Houssam. He killed the janitor with a shocked door, then heads got involved. Ended with the ai arguing with the captain, CE, and tarj HoP about who was allowed in, firstly requiring two crewmembers at all times but then saying it didn't trust the captain and the CE so the HoP was let in alone, at which point the door was locked and bolted and the guns came on and shot down the hop (without harming the humans)
admins yelled at me a lot for that. didn't help that i wasn't an antag and it was an extended round...