A variant of Pack-a-Punch would be added to Call of Duty: Advanced Warfare Exo Zombies mode as the Upgrade Station. The Upgrade Station, once a weapon is upgraded, allows the player to always have that weapon upgraded even if buying it from a Wall Buy or 3D Printer. ...
For some versions of Perks in a different form, see Persistent Upgrades. For similar utilities featured in other installments, see Exo Upgrade and Candy Perk. Perk-a-Colas (known as Perk Altars in the Chaos Story and Demonic Fountains in Call of Duty: Va