This very difficult game reminds me of Dune II from Westwood Studios and Virgin back in 1992.
My first RTS game I played and liked very much.
This SHROT game has almost the same intro except it's not a Dune game however we're also on a desert planet.

Gameplay is difficult from mission 3 and a little bit frustrating, but not impossible (I think/hope).
Graphics are very basic but ok.
Soundeffects are not bad but the soundtrack is awesome (if you like Techno-ish music)

Build, train, fight and win the battle !