The first part of this job requires you to tail the Black Knight as Sly. Remember to stick to the rooftops as much as possible, as this makes it a lot easier to keep track of him, as well avoid guards. Once the Black Knight gets to the blacksmith, he'll head inside and control will switch to Bentley.
Bounce onto the roof and head inside through the hatch. Use a bomb to blow up the wood in the way, then shoot the machine with a dart to shut down the lasers. Disable the lasers the same way in the second room, then it's time for a hacking mini-game (twin-stick shooter). It's not too hard, and there's only one section, so it shouldn't take too long.
Go through the hallway and disable the next set of lasers, jumping over the ones that remain. In the next room, the machine you need to hit with the dart is on the right side of the wall, on the other side of the lasers. Jump and hover over the gap, then head to the end for another hacking mini-game (auto-scrolling twin-stick shooter).
With the second hack complete, it's time to continue. Before go through the lasers area, jump on the rotating gears and blow up the box with a bomb to find a Secret Sly Mask. Head through the first set of lasers, then disable the next set so you can plant a bomb to continue. You will need to toss a bomb to remove the plating so you can disable the lasers with a dart. Jump over the second laser, then you need to disable the last two lasers by shooting darts to the left and right of the wall (watch out for the pistons). Go into the last room for a cutscene and the end of the mission.
