Swapping Call of Duty: World at War Beta Codes (Xbox 360 ↔ PC): Impossible & Pointless

This is impossible and pointless for several reasons:

• Beta Ended 2008: The World at War multiplayer beta concluded over 15 years ago. Codes are expired.
• Platform-Locked: Beta codes were tied to specific platform accounts (Xbox Live / PC CD-Key).
• No Trading Infrastructure: No official system exists; third-party trades are scams.
• Game is Legacy: Full game is on Steam (PC) / Backward Compatible (Xbox One/Series). Just buy/play the full game.

Do not attempt to buy/trade expired beta codes. You will lose money or get malware.