Fire with fire then:http://www.youtube.com/watch?v=HkDLaojdCCw
Sorry for bad video quality, wasn't recorded at home.UPD3
As of 01.11.2013 patch2 for SP mode was released:
Fix for the issue that was causing credits, consumables, and profile progress to not be saved in Multiplayer.The trick still works but you DON'T NEED TO DO IT ANYMORE.UPD2:
Fix for the Burnley Tower vent that Batman wasn't able to climb up
Fix for Free Flow Focus mode not unlocking upon unlocking Shadow Vigilante rank 3
Fixed player falling through elevators/world in most cases. For players that were stuck in free fall loop; if you are not back into the game or if it looks weird around you when you load the game, here are the steps.
Go in pause menu and select Restart from Checkpoint.
If Restart from checkpoint didn’t work, trying beating up all enemies around you.
If there aren’t any enemies around you, try going through a door.
Those steps should get you back into the game.
some people say enabled PhysX is required for them to do the trick.,UPD:
Before you go to the top of the tower, you may want to acquire second upgrade for your Cryptographic Sequencer by collecting Riddler's info stashes around the map (it will unlock automatically, no points required). After that, go to the window where vent is but DO NOT go inside. Instead, break the window with Explosive Gel and hack from distance (upgrade allows you to do so). Although, it's been reported that it is not required and I did so without hacking first device - some people say they can't interact with second one on the roof so better safe than sorry.
Can OP post his settings? physics and what not, dno if the game handles the glitch differently depending on the physics settings. Maybe a longshot... All at max (and I mean it), Vsync on, 4xMSAA, 1280x720 (working PC had different resolution but I can easily reproduce on home PC as well)