The Sentinel Barracks mission is wedged between a mission where you pilot a massive mech, and another where you ride a dragon. So, it is fitting that it is a more standard, linearDoom: The Dark Agesmission.You will be navigating a series of hallways, courtyards, bridges, and forts. While there are most certainly still plenty of secrets hidden around, the level’s structure essentially puts you on rails.

But don’t be fooled, that doesn’t mean you won’t get puzzled here and there while looking to claim certain bits of treasure - I myself spent more time than I would like to admit trying to figure out how I was supposed to get up to a particular treasure chest. But you don’t have to worry about that, as we’ll show you exactly how to reach every secret. That way, you’re able to concern yourself more with the demon bashing.

The Life Sigil Sentinel Barracks of Doom The Dark Ages.

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The heart of the Champion Mancubus in the Sentinel Barracks of Doom The Dark Ages.

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The Sentinel Barracks climbable side of the movable block in Doom The Dark Ages.-1

The Hell Knight Toy

The first collectible isn’t available until you’ve worked your way through a few monster-filled rooms. Once you head to the outside area, you’ll be able tosnatch up some gold. While it looks like that path will lead to more treasure, it’s a dead end. Head into the central room.

You’ll find yourself in a long hallway where there are three waves of Shield Soldiers with a Mancubus in the back supporting them.Take the Shield Soldiers out with shield tosses, then, finish the Mancubus off by parrying his Hell Surge blasts, while peppering him with bullets - you’ll want to keep your distance, as he’ll set you on fire if you get too close.

The Sentinel Barracks Codex in Doom The Dark Ages.

Once this area is empty, head back to the entrance, and, with your back facing the entrance, look to your left. You’ll see a boarded-up entryway that you can break with a Shield Charge. Do so and you’ll land in a room with a winding gold trailanda Hell Knight toy.

The Treasure Chest

When you are in the part of the stage where you need to stand on the button to lower the lift and gain access to the super-heated metal holding it up, you’ll find one of those corpses you’re able to throw your shield into in the section to the side. Do so, perform a Shield Jump, and you can grab some more gold.

Follow that gold trail to the other end of this platform, then jump down. There’ll be a massive block in your way. Shield Rush into it, and you will slam it to the other end of the floor. Now, head over to the block, climb it, and you’ll be able to get another pile of gold as well as open a treasure chest!

The First Life Sigil

After you exit the arena where you are locked in place and need to fight off waves of Hell Knights, you’ll find yourself in a hallway. On your left, there is alocked door with a terminal outside of it.Just interact with the terminal in front of that door to open it up and follow the path of gold straight to a Life Sigil.

You won’t be able to interact with the terminal until you have defeated all the enemies in the hallway.

The Point Of No Return And The First Ruby

Once you’re past the hallway where you were able to get that Life Sigil, you be faced with a deep elevator shaft. You need to jump down it to get to the next part of the stage, but make sure you’ve grabbed everything before you do, asthis is a point of no return(though it isn’t labeled as such on the map).

After dropping down the shaft, you’ll clear out some demons and then progress to a massive hanger. The first Ruby is found here.You won’t be able to progress forward until you claim it, so it is unmissable.

Rubies are used to upgrade skills.

Demonic Essence - Armor

Once you enter the area where you fight the Champion version of the Mancubus. This area will be flooded with Shield Soldiers, Pinky Riders, Stalker Imps, and regular Mancubuses as well. You’ll want tostay mobile, circling the arena and thinning out the number of demonsyou are contending with. The Mancubus Champion won’t appear until you’ve cleared out the first few waves. Once you kill the Champion, you’ll take its heart and gain a permanent armor upgrade.

The Second Life Sigil

Once you’ve killed the Mancubus, look forthe armor shards leading to the cliffside. You’ll want to sprint towards the ledge and then jump to cross over to the island across the gap. Once there, you can snatch up some gold as well as a Life Sigil.

The Second Ruby, Cultists, And Gold

Once you hop across the bridge, you’ll be facing a spiral tower. However, we’re not going to go forward yet. Instead,turn around so that you are facing the area you just jumped from. You’ll see that there’s an area underneath the island you were just on. Jump across the gap, and you’ll find a trail of gold to your right. Follow it around, while taking out the Nightmare Stalker Imps (those are the invisible guys) and fodder demons. Naturally, avoid the fireballs filling up the room, and head to the back. On the other end, there is a climbable wall.

Claw up it, and you’ll be faced with another circle of cultists as well as a Ruby. Finally, follow the gold trail up and over the wall, grab the pile of gold on top, and then jump down. You’ll be back on the topside of the island. Jump back across the gap to the other side of the bridge (again) and head straight for the spiraling tower this time.

Head to the right, up the tower, and you’ll reach a room with a treasure chest. Watch out, there are two Nightmare Imp Stalkers in here as well.

Nightmare Skin For The Accelerator

After you hop down into the area where you are confronted by the flaming skeleton heads, before you jump down,look for the spiraling staircase with gold leading upthe steps. Follow those stairs to reach the skin for the Accelerator.

More Gold And The Codex

In the area before the Dragon’s Aviary, the area with a Sentinel Shrine shop, you’ll find a few karts that you can break to access piles of gold. Now, in the area with the Sentinel Shrine, look to your left while facing the shrine, and you’ll seea trail of gold leading up a hill.Grab that gold, it’ll lead you right to the Codex.