The Campaign - Hell on Earth

Begin by defeating the initial Zombies with your shotgun.

Follow the tutorial for the Glory Kill mechanic on a glowing Zombie.

Head left, avoiding the blocked path to the right, and proceed down the stairs, dealing with any Zombies.

At the bottom of the stairs, pick up the Chainsaw and follow the tutorial. Be cautious of the explosive barrel.

Run through the area, find the glowing green symbol on a block, and press R3 to Melee attack it for a double jump tutorial.

Double jump up the block into the ceiling space, turn right, grab health and armor.

Interact with the blue glowing item, your first Weapon Mod-Station, select a mod, and proceed through the newly opened door.

In the next room, defeat the enemies without using your mod, then Melee the green glowing door at the end.

On the other side, you'll face Soldiers and Imps. Use your shotgun and melee attacks, keep moving, and utilize Glory Kills for health and the Chainsaw for ammo.

Note the blue columns that launch you into the air for vertical traversal. Use explosive barrels to damage groups of enemies.

After defeating all enemies, proceed towards the objective to find Deag Nilox.

Follow the glowing green lights through the door, grab the Codex entry 'Hell Barges', and watch the cutscene by approaching the door and hitting R3.

Head straight forward to grab the second Codex entry.

Climb up, use the Mod-Station if desired, and grab armor on the right.

Approach the glowing green cracked wall and Melee it after the Objective Marker tutorial.

On the other side, double jump to the floor above, cross the hole to enter a Secret Area, and grab the Doomslayer toy by walking into the giant Question Mark.

Drop back down and kill the Zombies, using red barrels for assistance.

If you drop to the bottom, you'll encounter Soldiers and Zombies. Go up the cliff on the right side.

Move up the hill, grab shield shards, and double jump to collide with a hanging bar to swing across.

In the next area, after dropping down, you'll face many enemies, including the Arachnotron. Prioritize clearing smaller enemies first, then focus on the Arachnotron, targeting its tail. Use the environment (blue columns, bars, multi-leveled terrain) to your advantage.

Grab scattered ammo, fuel, and health. Use Glory Killers and your mod.

Jump up ledges and pass through an archway. Interact with the glowing green weapon to get the Heavy Cannon tutorial.

Jump through the archway on your left and interact with the glowing blue Automap Station. Grab nearby health and ammo.

Head towards the doors to trigger a checkpoint and proceed.

Defeat the slow-moving Zombies, aiming for headshots for Glory Kills.

In the area ahead, climb the collapsed bell and double jump to a ledge. Turn 180 degrees and double jump across a gap to grab full armor.

Drop down and head towards the opening. Clear enemies, then climb the collapsed vehicle on the left to reach an upper level.

Kill the Soldier and Imp on the upper level. Walk forward, avoiding falling through the floor.

Melee the cracked wall on your left to enter another secret area and grab the Imp Toy.

Exit the building through the now-open bars.

To the right and then left around the building, kill a Soldier and Imp and collect fuel. You can drop down or re-enter the building and head through green-lit pathways up a ledge.

If taking the high road, kill the Soldiers and Imps. Before dropping down, grab health and ammo from the shattered window ledge on your right.

Look to the right; a part of the floor near the window extends further towards a gap. Cross this to continue.