Quote from another forum:
Gamestate is all the information needed to initially transmit game state information from the server to the client. There is a fixed maximum size to this data of around 30,000 bytes instituted by IW/GMI. When you exceed this limit you get a "Max_Gamestate_Chars_Exceeded" error. Gamestate includes ALL scripts for the map, EFX, Vehicles, and ALL models. Mods and other 'enhancements' contribute to this load. Each player joining contributes. Many custom maps and projects are running into this limit. The only suggestion is too remove some or all mods that may add data size.
is there a way to debug the current data size being sent?