Yeah I find Tac marines with plasma guns fun, and I use them as a type of shield to let the devastators do their thing. Seems to work.
There is a bug in my game though, in that the game won;t save my campaign progress UNLESS I save inside each map. Once I log out, and log in, it wants me to start a new campaign.
So the workaround is easy, just save in the campaign map, but it shouldn’t be there. Something is borked.
And sometimes I get skulls etc, and sometimes nothing.
I have started mission 5, and so far it seems like standard 40k fare, storywise. Nothing amazing, but serviceable.