Thank you all for all the comments,
Daeothar - yes indeed, nowadays it is so much "easier" to scratch build ( easier in the sense that there are so many more tools ) . The problem is to remember
where one gets all the bits & pieces from

The mechs ( not mine but slightly kitbashed ), among more nice designs are to be found here ) The Ogre .
https://www.thingiverse.com/mechaboys/designsThe troops ( kitbashed with pouches etc, Saw's, ML's & some more poses ) are as indicated here
https://cults3d.com/en/3d-model/game/jais-carabinere. Very cheap.
I printed them also in 6mm & 10mm. The seated poses are great for mounting in/on vehicles.
Akula - USMC official info states that those are antigrav heat vanes not rotors

. So most probably no one was diced ( That would too ugly to think off & horrible end to a career )
Grimmnar - The apc weapons are from KMFP . If I am not mistaken from this set
https://printedwargames.com/shop/product/orbital-knights-battle-walker-suit/More will follow
Z