Operation Port Armor

During the car ride, shoot one enemy on top of a vehicle coming from the right, then sit back. Follow your team members in the low-gravity space and go through the door. Double jump over the ledge in the room up ahead, go upstairs and eliminate the enemies in the back there. You can shoot the windows behind them to make them fly into outer space.

Continue and wall-run on the left side to cross the gap; (double) jump near the end to make sure you make it. You have infinite attempts, in any case. Go through the hall, crawl underneath the shutter and eliminate the large amount of enemies in the next area. There are various ones on the lower ground as well as in the distance; some of the latter can be killed by destroying the windows behind them, although you may want to time this carefully so a lot of enemies are grouped together close to the glass when it shatters.

Continue around the corner in the far right, kill the sniper on the balcony (as well as any other enemies on the ground level on these steps), then enter the adjacent beige-colored area to your right. More enemies appear, so clear the area with your team. Push onward and over the half-destroyed area on the right, where more soldiers appear. After defeating them, a new bot type appears, which is equipped with shields that block any bullets you shoot up front at it. Circle around the bot, unload a clip and repeat this process until you've destroyed it. Collect the shield from its remains.

Follow your team and open the shutter, then defeat the soldiers behind it. At the end of the hall you'll face another one of the special bots. Again, circle around to destroy it. Don't forget to collect the F-SPAR Torch Weapon from its remains.

Weapon F-SPAR Torch

Continue through the hall, go upstairs and clear the next hall of enemies. Grab Salter in the cutscene, then quickly follow your team to the door in order to catch your breath.

Go up the steps, then straight ahead and take a right turn to reach the armory. Unlock the door and go inside, then search the place for a Mauler Weapon, a Reaver weapon, and an equipement upgrade panel.

Weapons Mauler & Reaver

Follow your team until you reach a large area with various bots down below. Throw a few shock grenades down and finish off the rest with gunfire. Head up the stairs at the far end of the area, unlock the door at the end, kill the enemies inside and go through the next door afterwards.

Simply ride the elevator down, hop inside the spaceship and finish the enemy ships outside. There will be two larger ships at the end; use flares to shake off homing missiles.