Hier vom FAQ:

Due to the re-enabled AI in Wars, is AI and co-op in multiplayer now possible?
AI in Wars doesn't mean that we've added AI to the multiplayer game; we have simply enabled it in the engine so that when Wars is played in singleplayer the AI will function as normal. This means that although AI will be available to use in Wars, multiplayer support for it is not included.
SP Maps ja...aber im MP nicht....