A game that is a blend between an FPS and RTS, along with all those simulation games, and would be an MMO. You would have ranks like you would in real life, and the same responsibilities as those ranks. You would start out as a private, and as you played, you could rank up, or complete training sessions (Like America's Army) to get new gear, or to become a new class. As your rank goes up, you get things like a squad interface, which let's you command your own squad of other players. Then you can eventually rank up even higher, and complete a sort of OCS, which allows you to become an officer, and command platoons, battalions, and so on. The RTS element would come in at things like the divisions levels, in which you would have an overhead view of the battlefield, either from a spy plane, satellite, or your own drone or something. You could select squads, and set up way-points for them, which they would then need to follow. If the enemy shoots down your plane, then you would be effectively blind, needing to rely on things such as the helmet feed of your soldiers, or have them coordinate with you by use of a grid system. Or you could macro manage the battlefield, delegating responsibilities to your subordinates "Colonel 1, you secure our supply lines and our flanks. Colonel 2, you carry out the offensive here." And then those Colonel 2 would go "Officer 1, you set up an ambush. Officer 2 will pretend to retreat, leading them into the ambush. Then Officer 3 will hook around and cut off all routes of enemy retreat."
As you play, your soldier will gradually gain ranks and skills. Successfully obeying commands and taking waypoints will grant experience, while disobeying will take away experience. When that soldier dies, You lose a substantial amount of experience, which should be enough to not set you back months, but provide a very strong incentive to stay alive. Very highly ranked players could eventually command an entire country, form alliances, break alliances, and make peace. It would be possible to make battle plans in advance, but those would have to have a physical copy in the game world, and you could create spys who would still those, or assassinate high level generals or officers in the middle of battle. THEN you would have to do field promotions, and if the entire command structure is wiped out, along with communications networks, you could easily cut up an enemy force and divide it, with them being unable to coordinate a widespread counterattack.
TLDR; I want a game that completely simulates the military, INCLUDING all the paperwork, with game play like that of ARMA, AA, Operation Flashpoint, RTS, TBS, Civilization, and any of those other games.