For me it had the makings of a good game but I think they missed an opportunity to have a points based customisation system, so you could customise your astartes chapters. Say 20 points and you can allocate them how you like.
Balanced would get you ultra marines.
Heavy librarians would be blood ravens.
Heavy melee would get you space wolves etc.
Letting people own their factions like that would have been awesome.
Also annihilation should have been in from the start. This generator thing just didn’t quite mesh for me.
Technically speaking I had your make my own save in every Misson because the game wouldn’t remember my progress. Imagine finishing a mission and if you don’t go to the next one immediately the game forgets you had done the preceding mission, so when you load the game up again it appears you’ve done no campaign.
Then how in how units seem to die so quickly…