You will find yourself standing inside a very large warehouse which is also going to be monitored by a spotlight. Thankfully you'll be allowed to disable the spotlight for short periods of time using your tranquilizer gun. Start off by examining crates located in the center of the room. There's a bounty card (Conyard Pudak) on top of a large crate [#471].
Check your surroundings and you'll notice an elevator in one of the corners of the room. Get to the elevator and you're going to be transported automatically to a higher floor. You'll now have to get to the opposite end of this balcony without being spotted. Thankfully you can use nearby crates for cover [#472], as well as a tranquilizer gun to shut down the spotlight. Eventually you'll find a new elevator.
Once you've reached a new balcony your objectives won't change, however this time you'll have to be ready to take out a few guards. There are going to be at least two of them [#473]. Stun and kill them both and watch out for the spotlight in the meantime. If you're caught by the beam hide or run away instead of being an easy target.
Proceed towards a new corridor (where both enemy guards have appeared for the first time). Locate a NanoMED health station and once you're fully healed proceed through a small door. Use a tranquilizer gun to disable the lamp and approach the ledge. One of the drones is standing beneath your current position [#474] and you should stun it from a larger distance. Drop to the balcony, kill the drone and take the parts needed to make a Vent Tool.
Press the large red button and notice that Riddick has automatically grabbed drone's weapon. You've got two choices here. If you haven't triggered any alarms recently there is a chance to reach the ground floor unnoticed. Thankfully if you do get spotted you shouldn't have any problems eliminating enemy units [#475]. There's going to be a large distance separating you from your enemies, so don't expect to take a lot of hits. You can kill up to four enemies.
Wait for the elevator to reach its final destination and proceed towards a balcony located to your right. You may have to kill one of the guards if you haven't done that already. This will allow you to clear the path to a ladder. Use the ladder to return to one of the upper balconies and then use the small pipes [#476] to return to a previously explored area. Finish off by dropping down to a lower balcony.
You must now return to the glass room where you've killed one of the drones. As a result get on top of a small platform. After that press the crouch key and slowly step through the glass wall [#477]. Get on top of the crate and return to a ventilation shaft. Go back to a previously visited location.