Beta 11.2
Seed : EnergyPortableLog
Location : -1/Access
To the right/east of the exit to Command, there's a part of the map (with a garrison) that doesn't have a valid path to any other part of the map, except the hacker's entrance to Command.
I guess technically they could open all the sealed doors to let squads pass through, but that seems incredibly inefficient.
While there is a common wall between that part of the map and another, there's no emergency access door on that wall (can those even appear if there's a large terminal on one side of the wall?).
When i broke through that wall, the extermination squad (and maybe an assault squad?) that had been going for me for a while finally begun chasing me now that there was a valid path.
No screenshot because it didn't occur to me back then that that map generation might've been a bug, sorry!