You're almost to the street, but not quite. You still have some treacherous tasks ahead.

Use the harpoon to skewer the chot just beyond the annex door. Run up the steps, down the alley, and up the stairway to the control room.

There are two cops here. Shoot them both with the harpoon, or they'll attack you soon. Use the console to disable the laser barrier, then exit the room and go back down to the alley. Let the chots and cops fight, then follow the cops down into the small recessed room. There was once a laser barrier blocking this console, but you just disabled that. If you've possessed a worker, just run and use the console. If not, go back into the warehouse a do so.

After you've activated the console, climb back up to the street level. Now look up. See that door with the stenciled fire on it? That's what you just unlocked. Jump up the wall to the pipe and open the door.

This area is filled with gas jets. You must time your movements so you don't get burned. Watch the pattern of the flames before jumping. When you reach the last bank of jets, jump down to the platform below. Kill the chot, then shoot the guards across the way. The harpoon will make short work of them. If you don't have it, possess the chot and use his weapon.

Depossess the worker, then glide down to the floor below. Possess the welding worker. Turn around and start making your way to the control center. You must avoid the beams. To do this, jump onto one of the raised blocks, then quickly jump down and onto the next when the beams are off.

When you get to the control center, activate the console and quickly depossess the worker. Jump onto the railing, then up onto the raised platform. It will begin moving forward. Jump and glide to the next platform, and when it gets near the exit, jump and glide through the door. You only have 30 seconds to do all this, so make them count.

Once you're safely through the door, run up the stairs and out. You'll be back near the console where you unlocked the upper access door. Possess anyone around, then head back down the alley through the annex and out onto the street.

Out on the street, you'll see a shimmering screen guarding a behemoth. Directly opposite to that is a door with a smiling worker stenciled on it. Go through that door.

Beyond the door is a console. Activating the console will open a door behind you. Jump from the doorway onto the pipes extending from the wall. From there, jump onto one of the vertically moving platforms directly ahead. Jump from there onto the conveyor belt.

The next section of the conveyor belt is blocked by a low laser barrier. Jump onto one of the slabs of metal moving down the belt, then jump over the barrier as the slab passes through. Don't drop down to the next conveyor belt just yet. Wait for the box to fall and move a bit, then drop down.

Jump on the box again, which is now on its side. Once again, use the extra height to jump over the laser barrier protecting the next section. Once you're over the second barrier, follow the belt. Near the end of the belt, you'll see a ledge. Jump up onto the ledge and run down the hallway. You'll come to a console. Activate it to get rid of the cops guarding the next area.

Now, go through the door and use the lift. Jump to the platform and use the switch. This will take you to the weapons factory.