Go around to the right side and enter the building. There’s a locker inside containing first aid. Climb the staircase inside the building. A couple guards appear behind you so be ready to eliminate them. Take cover at the corner of the wall and shoot them with your uzi. Continue to the end of the hall on the top floor and locate the window. Break the window with the butt of your gun and jump through to the checkpoint.

There are a couple snipers around the corner; a few are far enough away not to appear on your radar. Eliminate the closest sniper; he’s visible just over the edge of the balcony you’re currently positioned on. The other two are to the left and right of the sign in the distance. You can drop down to the lower balcony ahead of you to get a better shot on these targets.

After dropping down and eliminating the three enemies, the helicopter reappears as well as a few more enemy targets. Take cover from the helicopter fire (there’s a small niche across your current rooftop that provides ample cover). When the copter moves off, equip the sniper rifle and eliminate the guards (usually one on the left side and another patrolling on the right).

Drop down again, which triggers additional guards to appear behind your position. You can scamper up the staircase to the billboard platform, which provides a good firing spot on the incoming guards below. A total of four more guards arrive. Descend the stairs and resume course toward the marked objective.

Cross the red girders toward the objective. As you near the next building, four more guards (one with a sniper) appear ahead of you. Back up a little; you can eliminate these guards from a relatively safe distance. You can even aim for the guards in the back without them having a shot at you. Take out all four guards with the sniper rifle before dropping down. Gather their ammunition and any dropped first aid bottles. As you search the area, the helicopter arrives again. Duck into the staircase in the back right corner of the area.

Objective: Get down to street level.

You’re now on the ninth floor and heading down. Go to the end of the floor and spot the medicine and ammo. As you do, a couple guards appear behind you. Switch to the uzi and eliminate them. There’s a hole in the floor. Drop down on the left side of the hole to reach a checkpoint.

Check your radar; there’s a sniper just below your position. Eliminate him from the safety of your current location. Drop down and collect the ammo. Cross the floor to the next stairwell and descend slowly toward the sixth floor.

There are several guards around the corner to the right. Note that your noise on the previous floor may have alerted them to your presence. If so, use the boxes and crates as cover as you eliminate the guards as they exit the stairwell and approach your position. If there are more guards on the sixth floor, you can retreat up the stairwell and lure them into an ambush or use your uzi to carefully pick off each one as you round the corner. Take note that there’s a sniper on the far side of the floor; he’s on the right side.

Continue down to the next floor. A couple more guards, one is a sniper, are positioned behind some crates. Eliminate them then move to their former position because a couple more guards are coming from behind in an ambush attempt. Use the walkway on the left to exit onto the rooftop. Watch for the guard below then drop to the left. Climb over the wall and approach the door. This triggers a checkpoint. Check the left side of the building for a locker containing first aid and ammo.

Move carefully down the stairwell with your uzi aimed and ready. You will spot a trio of guards below you; they shouldn’t be alerted to your position. As you near the bottom of the stairs, one of the guards may patrol into your line of fire. Eliminate the guard with your uzi. Keep the weapon aimed at the same location and take out each guard that appears around the corner.

Objective: Enter the sewer system.

Resume course down the staircases until you reach an exit door on the left side of the hall. Four guards appear outside—three on the front line and a sniper in the back. Take cover at the corner and use the uzi to eliminate the first three guards then equip the sniper and eliminate the fourth with a headshot. With the area clear, run and drop into the hole in the ground. You drop down into the sewer system, which completes the level.