/vr/ - Retro Games

I want to find a sci-fi rts that kicked my naive bottom years ago.

Isometric perspective, pretty sure it used sprites.
All units are either tanks of some sort, or bipedal mechs, kinda like pic related. Colors are blue and green in campaign, IIRC.
Lots of stationary turrets, gatling one is the best.
Big focus an aerial attacks: meteor showers, bombings, some bulky support flying saucer thing with 3 protuberances. Airstrikes are shown constantly in the upper left corner of the screen.
There is a 30 minutes long survival mission in Sudan, I think.