You play as Witzleben, the corrupt governor who playing both the terrorists plaguing your city and the all-female super soldier unit defending your city against each other.
The main girl, Chloe, is the new captain after you arrange for the terrorists to capture the old captain (2 to 13). You've decided to tame her instead of letting the terrorists have her.
Game play loop is a Dungeon Master style thing where she invades the terrorists and you help them win with your supporting traps and soldiers. She gets raped by the enemies and then humiliated by you after her defeat. You then do an interlude where a third party does something unhinged and shitty to Chloe (you need to win to proceed), and then you repeat the process.
Anyways, your MC is the person fucking her in 48 through 84. Heh. You are specifically better hung than even the actual monsters that have fucked her at this point.