Pack-a-Punch (Ubersprengen)

1. On the lower deck outside, there will be a battery with a green light on top. Kill Zombies next to it to power it. Once it's filled, it'll stop taking energy from Zombies, and the green light will go out.
2. On Wave 5, there will be another battery in the Projector Room. Once it's filled, it'll stop taking in energy from Zombies.
3. On Wave 10, there will be another battery next to the Pack-a-Punch machine, in the Barracks.
4. Once all three batteries are filled, Pack-A-Punch will activate.

Pack-a-Punch Upgrade

Allows you to upgrade the Tesla Gun, Ripsaw, and Melee Weapons (into the Shadowed Throne variants).

1. Around the map, there are six valves that you must interact with:
• Across from the Pack-a-Punch machine
• Across from Kugelblitz (Double Tap)
• Right of the Projection screen in the Projector room
• Left of the stairs from the Cafeteria to the Upper Deck
• In the small room between the Cafeteria and Barracks
• In the same room as the previous, left of the stairs to the beds room
2. A fuse will appear on the floor of the Pack-a-Punch room, near the door to the room with the beds. Pick up the fuse to upgrade the PAP machine.

The Sword of Barbarossa

1. Complete the Main Quest of The Tortured Path at any time at least once.
2. Around the map, there are seven rune stone (like the ones from Map 3's main quest) that you must give 1750 jolts each (12250 jolts total). If done correctly, the stone will glow purple. Rune locations:
• On the floor in a life jacket in front of the Lebenblitz (Quick Revive) machine
• Right of some boxes right of the Grease Gun wallbuy
• On the lower deck outside, in a beam left of the Mystery Box
• On the lower deck outside, in a pile of rope near the Mystery Box
• In a bucket, right of the Projection screen
• In a drawer on the wall in the room between the Cafeteria and PAP room (drop Jolts on the floor in front of it)
• Under the bed right of the Pack-a-Punch machine
3. Stand in the glowing ring in front of Lebenblitz (Quick Revive) and let a Zombie down you. You'll be instantly revived with the Sword (you'll keep all perks, except Quick Revive on solo).