the iron bar bends a bit, gives a little creak, and then finally, as if giving up, breaks off the vent. the whole crew goes toppling backwards. except Gordin who wasn't really pulling. "Good show lads! lets get in there!" Gordin shimmies down the vent like Santa Claus or something idk. it starts to get quite hot, sweat pours down Gordin's face. finally he reaches an exit point (it seems this was more of an incinerator for waste what waste? Gordin didn't want to know) he swings around and enters a dark room, it was still unbearably hot, he can only make out a Door with light pouring in from the cracks. he motions for the rest to follow down the chute.