Downloading a "full MP/SP" game from a third-party link usually restricts players to cracked servers. You will not be able to play on official servers or use features like Steam friends lists or anti-cheat systems.

Because Activision no longer actively hosts standard matchmaking servers for a game of this age, the community has stepped in. To access the thriving community servers:

Let’s separate fact from fiction.

A true full-game package contains two separate executable files. Each file launches a completely different side of the game. Single Player (SP) Mode

If you want, tell me which platform (PC, Xbox, PlayStation) and I’ll give platform-specific steps to buy/install and get multiplayer working.

Whether you are looking to relive the intense historical campaigns or dive into classic tactical multiplayer matches, this comprehensive article covers everything you need to know about the game's features, its enduring legacy, and how to safely run it on modern systems.

Call of Duty 2: Relive the Definitive WWII Experience (SP & MP)