I really like v3.
I would like to see one or two (maximum) slots playable on East. Random Class type spawn with appropriate weapons. Towns to spawn in are selectable. You can not leave the dark circle of the town for more than X minutes or you are labeled a deserter and even East troops will shoot at you. Can not spawn in towns that have been cleared, can not get within X meters of West base, etc.
I would enjoy playing as or against human OPFOR units. But only one or two.