It was supposed to be a dead-end, but there is a tube sticking out now (which kinda denies the name but everything else is pretty much natural) that is actually a warp with multiple warp targets so you don't must backtrack through the base's corridor.

@Darksonic: Looks very nice. Music chosen? XD yes, I'm a freak. Heck, that was my user title a bit back. 'music freak'.