In this scene of Angron's Betrayal at Istvan IV I stuck with the casualties being portrayed as Loyalist World Eaters and Death Guard.
The model has a scenic base that incorporates a playing base but the positioning of the two Loyalist casualties makes accessing the play base difficult. Since the whole scenic is just a bit to fragile for actual play it'll always be a display piece anyway!
I'm looking forward to experimenting with the self-cracking earth and the thick, translucent Nurgle's Rot.
Now to stumble off in search of a suitable target!