.3J.02. Horizon: Repair Defense Tower

Proceed through the area, being cautious of enemies to the southeast. Watch out for charging Husks and troublesome Collectors.

Engage your first Scion, a slow enemy with heavy armor that fires shockwaves. Prioritize eliminating Husks due to their damaging melee attacks. On harder difficulties, Husks have minimal armor. Retreat to the northern unit if you need more space.

After the first wave, collect available items, including an upgrade, and proceed through the door.

Upon entering the next area, you will face a swarm of Husks from the north and east, along with Scions from the east. Eliminate the Husks first, retreating south if necessary. If overwhelmed, sprint and use abilities or a slowdown effect, as Scions' shockwaves can hit you while moving.

Once the Husks are dealt with, focus on the Scions, using anti-Armor offense if possible. A Power Cell is available on the south side, but conserve ammo for the Praetorian.

Hack the computer to initiate the next step.

Collectors, including Drones, Guardians, and an Assassin, along with Husks, will fly in from the southeast. Drones will continuously respawn (be brought back to life at a checkpoint after death) as Harbingers until you defeat six or seven Collectors. Pick up ammo during the brief lull.

After a 30-second pause, Husks will attack from the north and Collectors from the northwest. Use the transmitter as cover (press the cover button to crouch behind walls or objects) and recover health there if needed, as Collectors rarely approach.

Your position will automatically shift west to face the Praetorian. This flying enemy has a dangerous laser-eye-beam-of-death attack and significant Armor. Its laser beams originate from its middle, allowing you to shoot around nearby boxes. It closes in quickly and has a damaging melee attack that stuns. Use Heavy weapons and resort to hit-and-run tactics if ammo is low. Sprint to new cover during the pause between its laser beams. On harder difficulties, it will deploy a barrier every 25% of its health.