Call of Duty: Modern Warfare 3 Zombies received its final story mission with the Season 5 Reloaded update. The Act IV Ascension mission concludes the MWZ Dark Aether lore, and we'll soon get a prequel with Black Ops 6 Zombies. Here's a complete walkthrough of the mission where you battle The Entity.
Best loadout for Act 4 Ascension in MW3 Zombies
Before getting into a match, ensure you're properly equipped with a level three armor plate, a large backpack, self-revive kits, essential Perk-a-Colas, and a kitted weapon. As you can see in the image above, I went in fully prepared with all these equipment and even carried a Legendary Aether Tool and Flawless Aetherium Crystal to max Pack-a-Punch my weapon right off the bat.
If you have these items in your stash, this is the best time to use them; otherwise, you can spend time acquiring these upgrades during the match by completing missions and earning Essence. For lethal and tactical, I suggest going with the usual Throwing Knife and Decoy Grenade as usual. Furthermore, I carried The Scorcher Case as this wonder weapon as it helped me traverse the Dark Aether easily.
How to start the Act 4 Ascension mission in MW3 Zombies
Once in the match, go straight to the Tier 3 Threat Zone if you've come prepared with all the gear. Reach the extraction indicator in Old Town (see image above) and you'll find a portal there. Interact with it to begin voting for the mission to enter the anomaly. If possible, I suggest waiting for other players to join in so your squad gets bigger, which will make the mission much easier to complete.
How to find a way to weaken the Entity in MW3 Zombies
You'll then spawn in the Dark Aether zone where Dr. Jansen and Ravenov will be waiting for you. Your first objective here is to confront the Entity by finding a way to weaken it. For this, you need to visit the two energy sources, one by one. You can identify these areas of interest by the yellow beam of light (see image above).
To traverse the Dark Aether zone, you can utilize the blue void crystals that are essentially jump-pads. If you see red crystals, shoot them as I've shown in the above picture to turn them into blue void crystals. Alternatively, you can also use The Scorcher wonder weapon to easily move around if you've brought one.
How to find and cleanse the relics in MW3 Zombies
Now, reach either of the two energy sources by following the light beam. In that area, you'll have to search for and collect four relics like the one shown in the above image. Once all the relics are gathered, go to the pillar and hold the interact button when the Activate Cleanse prompt appears (see second image). To cleanse the relics, Dr. Jansen will deal with the energy source while your job is to kill some zombies.
After the first energy source is dealt with, move over to the next one and repeat the same process (i.e., collect four relics and activate cleanse). This time, however, the relics will scatter mid-cleansing. You'll then have to regather the three possessed relics. These items will be floating around, therefore, you'll have to utilize the jump-pads (void crystals) to parachute over and collect them.
How to ascend the tower to reach the Entity
The next step in the Ascension Act IV mission is to ascend the tower to reach the Entity. Once again, rely on the void crystals, The Scorcher wonder weapon, and ziplines to reach the top of the tower. Then make it through the marked portal (see image above). Thereafter, go through a series of floating rocks to reach the ship in the sky.
Enter the portal on the ship and you'll be taken to the final stage where the final boss can be found (see image above). Parachute over to the floating rocks in the sky and get ready to destroy the Entity. Wait for Dr. Jansen to summon the enemy and once it arrives, start battling it along with your squadmates.
How to destroy the Entity in MW3 Zombies
You can damage the Entity by shooting at the glowing orbs (critical parts) on its body as I've shown in the above image. Meanwhile, you'll also have to fend off zombies spawning around you. Keep jumping back and forth between the floating rocks using the void crystals and keep damaging the boss.
The Entity also has a few tricks up its sleeves. It will often unleash targeted strikes on certain rocks and you'll have to dodge it (see above image). Also, beware of the laser beams it shoots at you and the purple orbs that attack you aggressively. After you've depleted the boss's health bar completely, a reward rift will appear for you to loot. Surprisingly, the Entity then reappears will full health and you'll have to defeat it once again; but there's a twist.
The Entity will be immune to damage and to make it vulnerable, you'll have to kill zombies near Dr. Jansen to fuel her powers, just like you did earlier at the energy sources. The doctor will then unleash a beam of energy at the boss making it vulnerable and that is when you start shooting at its critical parts. Repeat this process a few more times and you'll manage to take out the Entity for good.
Act 4 Ascension Rewards - MW3 Zombies
Loot the reward rift to acquire Mr. Peeks (an item required to unlock the new Repeatable Dark Aether Rift). Finally, use the exit rift to extract from the Dark Aether and complete the Act 4 Ascension mission. You'll then see a cutscene that concludes the MWZ storyline, for now.
For more on Call of Duty, check out Black Ops 6 Beta will earn you progress on Modern Warfare 3 Battle Pass on Pro Game Guides.
Praharsh Kashyap is a video gaming enthusiast from India currently working as a Contributing Writer at Pro Game Guides. He has been playing and covering first-person shooters such as Call of Duty, Battlefield, and Apex Legends for years now. Besides FPS games, he also likes to indulge in RPGs every now and then.