Shadowgrounds/New Atlantis: Centrum

You are told to report to Sergeant Shilvitch in Gaudium Hall. He is located to the north. But first, you will want to collect the grenade launcher, on the ground next to the soldier resting in the middle of the room.

The corridor leading north will have a few enemies in the attack. At the end of the corridor, take a right, and continue until you see a terminal. Use it to open the disco hall. In this hall, head to the door left of the stage (reached by sticking to the left wall), and proceed backstage. Use the backstage area to continue towarsd the sergeant and complete, who will advise you to look for civilians that need to be rescued. There will also be a flamethrower here in case you missed it previously.

Proceed down the corridor to the west. This section will be a gauntlet of enemies, but are otherwise not too difficult. The civilians to rescue can be found by following the corridors, and entering the marked side rooms as you approach them. There are two groups of civilians, and once you reached both groups, you can head to the evacuation point.

Once you reach the drop point, Shilvitch will order you to contact three squads to order a retreat. The first squad is located in the hub to the northwest. To reach the second squad, head directly east. For the third, continue east to the third hub. Before returning to the drop zone, you should collect the laser rifle. It is located to the southeast of the third team, and is found on the ground outside.

When you are ready, you can proceed to the drop zone. You will have to defend yourself from waves of enemies before the dropship returns to pick you up. While these enemies do drop upgrades modules, they should be collected as soon as possible, since the level ends abruptly without a chance to collect them.