Does anyone know why the ghost units problem occurs and what, if anything, could be done at the modding level to correct this problem? First, I have to define the term "ghost units". Ghost units are units which keep marching forward into or through a battle or situation when they actually died earlier. There are a number of giveaway signs which taken together show they are ghost units: (a) The client sees them marching through a battle situation whereas the host does not see them. (b) They do not fight in the normal way. (c) They march past all possible opponents without fighting. (d) They fire at seemingly invisible targets. (e) They stand and "wait to die". (f) They eventually die for seemingly no direct reason. I see ghost units in big battles (populations of 6,000 to 12,000 per player in 1v1. This no doubt has something to do with me playing as client and having slow internet. But why does the game engine permit the client's sprites to get out of synch like this and then correct it later after death of the units? What might be the causes of this problem?