In *Call of Duty* Zombies, the Pack-a-Punch machine is your ticket to significantly upgrading your weapons. However, finding it in *Black Ops 6*'s new map, The Tomb, requires a bit more legwork than in previous maps.
How to Find the Pack-a-Punch Machine in The Tomb

Unlike maps like Terminus and Citadelle des Morts, simply reaching the Pack-a-Punch machine's location isn't enough in The Tomb. First, you must open the "Doorway to Nowhere," a teleporter leading to the Dark Aether nexus.
The Doorway to Nowhere is situated in The Tomb's Subterranean Temple area. Progress through the map, opening doors until you reach the Temple. There, you'll find an altar. Place the Amulet (you'll always start with it) on the altar by holding the interact button. After a short wait, the Doorway to Nowhere will open, granting access to the Dark Aether Nexus.
Initially, the Pack-a-Punch machine resides within the Dark Aether Nexus, near the center. However, its location changes periodically.
All Pack-a-Punch Locations and How to Find Them

The Pack-a-Punch machine has two possible spawn points in The Tomb. Its first location is always the Dark Aether Nexus. The second is much closer to your starting point—the Roman Mausoleum, an ornate ruin atop the Dig Site.
To determine the Pack-a-Punch's current location, consult your Tac-Map. The main Tomb area and the Dark Aether Nexus have separate Tac-Maps. If the Pack-a-Punch icon isn't on one map, it's on the other.
Alternatively, look for a stone slab with illuminated sections. These sections will show the Pack-a-Punch's location. If the symbol is on the main map, head there. If it's on a separate island, it's in the Dark Aether Nexus.