Activision’s is no joke. Unlike older Call of Duty titles, Cold War is heavily monitored. Using a trainer repack online almost guarantees:

Activision has begun issuing HWID bans. If caught cheating in a public lobby, they ban your motherboard and hard drive serial numbers. Even if you buy a new copy of the game, you cannot play on that PC without a hard-to-find HWID spoofer.

Cautiously yes, but offline only. You can use the trainer to complete Dark Aether challenges by spawning infinite zombies in solo matches. However, do not attempt to take those unlocked camos into public lobbies; the anti-cheat checks for impossible completion times (e.g., getting 15,000 critical kills in 10 minutes).

: Both the game and the trainer need high-level access to your PC's memory. Always right-click and "Run as Administrator" for both. The Order Matters

Downloading a version of Call of Duty: Black Ops Cold War is a common way to enjoy the single-player campaign with cheats like infinite health or ammo. Because repacks (from groups like

Always check the Official Activision Server Status before troubleshooting your own hardware.