I remade all generals campaign missions using Generals Classic Mod and Operation Firestorm, All mission maps are 500 in size which IS HUGE LIKE REALLY BIG. No lag issues what so ever on my end. Added tech buildings to maps etc. Read description.
Only one thing changed but is a big hotfix. Basically some missions would not sync properly with the General Powers. But the problem is fixed now and you have the correct general powers all available to you again on the missions.