It may not really work with the scale. I did start a similar project but it was intended to be more of an multiplayer RPG version. In this, each player has a 1 man unit with their personal equipment. It is played via Pbem so with 4-5 players and then me being the GM, it plays very slow. It was fun during the testing we did though.
There is a thread here at Shrapnel (
WinSPMBT - The Role-playing Game!) and one over at GameSquad (
WinSPMBT - The Role-Playing Game!)