From Team Fortress Wiki
The Scrap Pack is a promotional miscellaneous item for the Pyro and Medic. It is a deactivated Chopper-Bot from the game Shoot Many Robots that replaces the Pyro's oxygen tank and the Medic's Medi Gun backpack. Its fuel tank and chainsaw jiggle upon movement.
- The Scrap Pack was added to the game.
- Updated the Scrap Pack, it can now be crafted, gift-wrapped, and traded.
- Backpack sounds updated for the Scrap Pack.
- The Scrap Pack can now get kill assists in Pyroland.
- The Scrap Pack may occasionally vanish upon death and sometimes stay fixed to the ragdoll.