This looks like a BAD ASS Tank sim - May I ask what it is called?
Steel Armor - Blaze of War by Graviteam, their last tanksim, after Steel Fury - Kharkov 1942. Much less mod-able than SF so just the two playable AFVs and three campaign theatres (Persian Gulf, Angola and Afghanistan). Basically it's one of Graviteam's wargames, but with the bonus of being able to operate the two playable tanks.