As far as i undetstand it is deeply rooted in game nechanincs but i think it is really bad that East and West Entente cannot cooparete closer - meaning that they cannot combine their units at certain frnts and drag supplies from the same source or share information.
I tottaly understand the need to ballance the game by dividing comand over ententę as it would leave central power hoples
but
lack of possibility for combining greek and serbian troops or createing salonika as a base for serbs is both ahistorical and ilogical
russin troops were send to france, serbian troops were being requpped with the french help
perhaps there coudd be some possibility to delegate troops from one enetenete to another?
or et least share decide that evrything that goeas to balkans is comanded by Eastern Enetne?