If you've got Arma 3 then (besides the AI and Engine quirks) is something you can build to your liking like DF.
I've made a few maps there and one of those maps just happens to be competition quality In my mind the map is trying to sums up what it's like to get thrown into the meat grinder and it's a mix of shoot and scoot at the beginning, graduating to stealth and sharpshooting with tactics coming later as the situation evolves into paroling for any residual forces...
It took 6 months to make and it might be worth your while to check it out.
Steam Workshop
Stompem's Workshop - Battlescope
