The real cause is rooted in the engine and in how it deals with the tasks presented to it, the game simply cannot handle all the new countries that are added into the game with each country have massive amounts of data for the game to handle. The conclusion that I came to is that the game will lag even with the new map, while the map is one of the symptoms of the lag it is not the cause. I am very sad to announce that my enthusiastic announcement regarding the next beta of MW mod was published too hastily, I was hoping that I can solve the severe lag problem of the mod by replacing the map but that has proven itself an illusion.
