The Campaign - Hell on Earth

As soon as you gain control, defeat the initial Zombies with your shotgun.

Proceed through the door and follow the Glory Kill tutorial on the glowing Zombie.

Head left, dealing with any Zombies on the stairs.

At the bottom of the stairs, pick up the Chainsaw. You will be teleported to a tutorial area. Use the Chainsaw on Zombies and be mindful of the explosive barrel.

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

Double jump up the block into the ceiling, turn right, grab health and armor, then interact with the blue glowing weapon Mod-Station. Select a mod and proceed through the opened door.

Shoot the enemies in the next room without using the mod, then Melee the glowing green door.

In the next combat area, defeat the Soldier and Imp enemies. Keep moving, use Glory Kills for health, and the Chainsaw for ammo. Utilize the blue columns to reach the upper level and explosive barrels for groups of enemies.

Proceed towards the Demon Priest: Deag Nilox. Look for glowing green lights and head through the door. Grab the book on fire to get the 'Hell Barges' Codex entry. Approach the door and press R3 to watch a scene.

After the scene, head forward to grab the second Codex entry. Climb up, use the Mod-Station if desired, and grab armor. Approach the glowing green cracked wall and Melee it after the Objective Marker tutorial.

On the other side, look up and double jump to the floor above. Cross the hole to enter a Secret Area. Walk into the giant Question Mark to get the Doomslayer toy.

Drop back down, kill the Zombies using red barrels and shotgun shells. If you drop to the bottom, fight Soldiers and Zombies. Go up the cliff on the right, move up the hill, grab shield shards, and double jump to collide with the hanging bar to swing across.

In the next area, after dropping down, defeat the smaller enemies first, then focus on the Arachnotron. Its weak point is its tail. Use the environment (blue columns, bars, multi-leveled terrain) to your advantage. Grab ammo, fuel, and health. Use Glory Finishers and your mod.

Jump up ledges and pass through the archway. Interact with the glowing green Heavy Cannon weapon for a tutorial.

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

Head towards the doors, which will trigger a checkpoint and open.

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

In the next area, climb the collapsed bell, double jump up the ledge, turn 180 degrees, and double jump across the gap to grab a full armor icon.

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

Kill the Soldier and Imp inside. Walk forward carefully, look for a cracked wall on your left, and Melee it to enter another secret area. Drop down and grab the Imp Toy.

Exit the building through the now-opened bars. Head right and then left around the building to kill a Soldier and Imp and collect fuel.

You can either drop down or re-enter the building and take the green-lit pathways up a ledge.

If you take the high road, kill the Soldiers and Imps. Before dropping down, exit onto the ledge through the shattered window on your right to grab health and ammo.

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