Skyrmish not working in C&C 3 (Command Conquer 3: Tiberium Wars)

The campaign works fine, the training one also works, only skirmish and multiplayer do not work, in fact, for which I need this game, I downloaded dozens of different repacks, everywhere the same problem, the game just crashes without any errors and other things. There is no information on this topic on the Internet. Windows 10 64pro hardware AMD Ryzen 5 5600G CPU, 24GB RAM, GeForce RTX 3060Ti graphics card