☠︎︎ S1 Guns: Kogot-7 | Maddox RFB
☠︎︎ Astra Malorum Easter Egg Walkthrough
☠︎︎ Astra Malorum Side Quests
☠︎︎ Astra Malorum Wall Buys
☠︎︎ S1 Weekly Challenges
☠︎︎ How to Level Up Fast

This is a list of all Ol' Tessie upgrades in Call of Duty: Black Ops 7 (BO7) Zombies. Read on to learn what each upgrade does and how to unlock it.
List of Contents
| Upgrade | Effect |
|---|---|
| T.E.D.D.’s Head | Allows you to drive Ol' Tessie across the map. |
| Pack-a-Punch | Upgrades weapons up to 3 tiers, unlocks additional weapon abilities, and grants Ol' Tessie a short speed boost while driving. |
| Abomination Heads | Allows Ol' Tessie to fire a powerful energy beam from the hood. |
| DG-2 Turret Barrel | Adds a mountable lightning turret on Ol' Tessie’s roof that can fire automatically or be manually controlled by a player. |
Ashes of the Damned Easter Egg Walkthrough
| 1 | Get T.E.D.D.’s Head in Server Room |
|---|---|
![]() Open the Server Room in the spawn area to access the crate inside. Melee the crate to open it up and get T.E.D.D.’s Head. |
|
| 2 | Install T.E.D.D.’s Head to Ol' Tessie |
![]() Use T.E.D.D.’s Head to repair Ol’ Tessie, allowing you to drive the truck and access new areas across the map. |
| 1 | Clear the Infested Power Pumps |
|---|---|
![]() Once Ol’ Tessie is repaired, drive to either Blackwater Lake or Vandorn Farm. Clear the Power Pump of infestation by destroying the orange blobs within 30 seconds. Once the pump is fully cleared, activate the switch in the same area to restore power. After that, head to Ashwood and repeat the process. |
|
| 2 | Install Pack-a-Punch to Ol' Tessie in Ashwood |
![]() With power restored in Ashwood, drive and park Ol' Tessie inside the garage, then interact with the workbench to install the Pack-a-Punch to Ol' Tessie. |
| 1 | Get Freezer Key in Reba's Diner |
|---|---|
![]() After restoring power to Ashwood, head to Exit 115 and open the door to Reba's Diner. You must kill a zombie inside the diner to drop the Freezer Key. The drop is random, so make sure the zombies are inside when you kill them. |
|
| 2 | Obtain Abomination Carcass |
![]() Once you have the key, use it to open the freezer in the upper-right corner of the diner and obtain the Abomination Carcass inside. |
|
| 3 | Install Abomination Heads to Ol' Tessie in Ashwood |
![]() Drive back to Ashwood and park Ol' Tessie inside the garage, then interact with the workbench to install the Abomination Heads to Ol' Tessie. |
| 1 | Acquire the Necrofluid Gauntlet |
|---|---|
![]() First, you will need to obtain the Necrofluid Gauntlet Wonder Weapon in order to collect the Powder of the Forgotten and the three keys needed for the next steps. ▶︎ How to Get the Necrofluid Gauntlet |
|
| 2 | Obtain Syringe and Perform Blood Sacrifice |
![]() This blood sacrifice step requires the following items: Widow's Lantern, Hoard Husk Chunks, Ravager Eyes, Human Bones, Powder of the Forgotten, and Mysterious Limbs. Head to Zarya Cosmodrome, retrieve the syringe (building near the Wisp Tea), and bring it to Yuri's lab (building with the big red star). Interact with the powder on the table to reveal 3 codes on the board. Input the correct codes in the right order to turn the vial red. Add blood to the vial to start a soulbox event. You will then be trapped in the room and must kill zombies until it fills with purple smoke and the exit opens. ▶︎ Yuri's Lab Serum Symbols Solution |
|
| 3 | Collect Three Keys in the Fog |
![]() Next, collect the Nightbird Key (Orda Graveyard), Bruin Key (Crashed Rocket), and Terrapin Key (Grounded Ship) from the fog areas using the Necrofluid Gauntlet. Note that the key locations are randomized each match. It’s also recommended to bring Ol’ Tessie, as carrying the keys will inflict debuffs. ▶︎ All Ashes of the Damned Key Locations |
|
| 4 | Obtain and Install DG-2 Turret Barrel to Ol' Tessie in Ashwood |
![]() Once you bring all 3 keys to the prism in Ashwood, a cutscene will play out. You will be rewarded with the DG-2 Turret Barrel after. Drive and park Ol' Tessie inside the garage, then interact with the workbench to install it to Ol' Tessie. |

All Ol' Tessie Upgrades



Genshin Impact Walkthrough & Guides Wiki

Umamusume: Pretty Derby Walkthrough & Guides Wiki

Where Winds Meet Walkthrough & Guides Wiki
Honkai: Star Rail Walkthrough & Guides Wiki

Digimon Story: Time Stranger Walkthrough & Guides Wiki

Wuthering Waves Walkthrough & Guides Wiki

Chaos Zero Nightmare Walkthrough & Guides Wiki
Pokemon TCG Pocket (PTCGP) Strategies & Guides Wiki
Pokemon Legends: Z-A Walkthrough & Guides Wiki

Elden Ring Nightreign Walkthrough & Guides Wiki
Yu-Gi-Oh! Master Duel Walkthrough & Guides Wiki

Fire Emblem Heroes (FEH) Walkthrough & Guides Wiki

Diablo 4: Vessel of Hatred Walkthrough & Guides Wiki

Elden Ring Shadow of the Erdtree Walkthrough & Guides Wiki
Super Smash Bros. Ultimate Walkthrough & Guides Wiki

Monster Hunter World Walkthrough & Guides Wiki

Pokemon Brilliant Diamond and Shining Pearl (BDSP) Walkthrough & Guides Wiki
The Legend of Zelda: Tears of the Kingdom Walkthrough & Guides Wiki

Persona 3 Reload Walkthrough & Guides Wiki
Cyberpunk 2077: Ultimate Edition Walkthrough & Guides Wiki
©/TM/® 2025 Activision Publishing, Inc.
The copyrights of videos of games used in our content and other intellectual property rights belong to the provider of the game.
The contents we provide on this site were created personally by members of the Game8 editorial department.
We refuse the right to reuse or repost content taken without our permission such as data or images to other sites.