I know, it is more or less exactly what I have made with my pseudo-deviator
It's a bit different, because the siege units are already low strength for their tech, while the scorpion units are very high strength for their tech, and hence even a strength-reduced medium scorpion will still be facing decent combat odds, and because you can't get flanking promotions onto a siege unit.
but to make a late UU for the ordos, in the spirit of the hit and run trike
I don't think there is very good synergy between collateral damage and withdraw on different units; they are different ways of achieving the same purpose (softening up the enemy stack before you bring in the main units). And I'm not sure that siege units really fit very well with the raider theme of the Ordos, lots of hit and run and pillaging with light vehicles.
But I think we agree with the main point, that there is synergy between collateral damage and withdraw on the same unit
I see no reason in the lore fremen can't carry missile launcher or rifle in bagback
Yeah, the decision was heavily debated, and both sides had reasonable points, but I think the current design is probably the best choice. If we went by the lore, the Fremen would just kick everyone else's ass
I think corrino don't need a powerfull guardman in the lattle game
Agreed, they have Sardaukar in the midgame and late-game, and those should be their elite focus. So I agree that an earlier unit makes sense for the levy trooper.
The levy trooper as a concept definitely makes sense for Corrino; the idea is these represent the troops that the Emperor can levy from the other houses under imperial custom, just as historically monarchs could levy troops from the lesser nobles.
[Recall that in Dune, everybody believes that the Sardaukar are recruited out of levies provided by the Great Houses to the Emperor - they don't know that Sardaukar actually come from Salusa Secundus.]
There's no particular reason why it needs to be a flamethrower or any other weapon.
The imperials already have an early game offensive unit - the laza tiger - so I lean towards making the levy trooper a replacement for one of the basic city defense guardsman units, with a higher city defense bonus. But there isn't a strong reason for that.
*edit*
A variation would be to have the levy trooper replace the Maula Guardsman (the strength 5 guy, I forget the current name), but to start with the city defence 1 promotion, so that for all the levy troopers you built, they had a bonus (the free promotion) which they retained when upgraded.