Der Riese Map Code for Call of Duty: Black Ops (Xbox 360) – No Code Exists
No code exists for Der Riese on Xbox 360. The map was part of Map Pack 1 DLC, purchased via the Xbox 360 Store (now discontinued). No promotional codes were ever issued.
Possible Access Methods
Used Discs: Search eBay/Amazon for pre-owned Black Ops with DLC already installed.
Disc Swap: Borrow from a friend who owns the DLC disc.
PC Emulation: Unofficial, with significant legal and technical hurdles.
Reality Check
Black Ops Xbox 360 servers shut down—online multiplayer is dead.
DLC codes for delisted games are virtually non-existent and unreliable.