There's only one passageway leading to your current destination, so you can't get lost while you're inside the shaft. SAVE your game once you're close enough to the exit. It's very important, because it's going to be easy to die here. You'll end up inside a corridor filled with explosive barrels. Activate slow-motion and start running forward (screen). You CAN'T make any unwanted stops here.
It's very important to reach the opposite end of this corridor quickly, because a single enemy unit will appear there. If you're not there on time, he would be able to destroy a barrel which could cause a huge chain reaction. Kill this soldier (screen) and enter a new corridor. There's an ammo crate there. You should also consider saving your game.
Turn around. I assume that the barrels weren't destroyed. Sadly, you will have to blow up one of these objects yourself. Make sure that you're standing inside this small corridor, so you won't lose too much health as a result of a huge explosion. Wait for all barrels to be destroyed. Go back to the main corridor. You'll find a small entrance here (screen). Climb down and head forward.
You shouldn't encounter any additional troops here, so you won't have to use nearby object for cover. You will soon enter a new area which is partially flooded. Keep moving forward. You will have to reach several large pipes (screen). Save your game and climb on the nearest pipe. Make a few steps forward, turn around and try to kill at least a few enemy soldiers.
You shouldn't try to be very careful here, because you would only lose a lot of time. Instead, make sure that you're using your powers to finish off enemy troops from here (while standing on a large pipe). Retreat each time you run out of power or lose too much health. Start off by killing soldiers equipped with rocket launchers. There's also one sniper in this area.
It would also be a good idea to jump over to a nearby ledge. It can be found to your right. You shouldn't perform this action right away. Make sure that the surrounding area has been secured. Otherwise you have to struggle with massive enemy fire. You should be able to kill all remaining enemies from here, especially with the crossbow. Wait for the game to display a new task.
New mission objective: Locate upper control room and open doors to Zeppelin
Head on towards the largest platform. You won't encounter any additional soldiers here. Instead, search for a lever (screen). Pull it and wait for a smaller platform to lower itself. Pull the lever once again, however this time activate a time stop function. Go to the moving platform and deactivate this power. Wait for the platform to go to the upper platform. You'll end up near one of the balconies. Start moving forward.