This had better work. Sly won't stand a chance making it through this train unless I neutralize the aerial defenses. Good thing I outfitted the RC chopper with a new cannon.
― Bentley while on Iron Horse No. 2[src]
Bentley jumped on board Iron Horse number 2 and launched his RC chopper so that he could destroy the aerial defenses. He used the new cannon he added to the chopper to destroy enemy planes and choppers, while also dropping bombs on rocket launchers and guards below.
Once the train was cleared of the heavy weaponry, it was now safe for Sly to board and steal Clockwerk's Clockwerk's second lung.