These are some of my assault marines in MKV. They will be part of a squad that will have other guys in more intact MKII plate.
These ones have replacement parts where their armour had become damaged.
I've only used legions that were present on Istvaan III as that is where these guys will be used. When gaming other things I'll get another set of MKII guys and use them to round out the squad instead.
They have pieces of armour from Sons of Horus, Death Guard and Emperor's Children. Presumably they have also cobbled together pieces of armour from other World Eaters.
One nice thing about the MKV plate is that it allows this sort of thing, although I'd imagine that most shattered legion forces would have access to paint to touch up their cobbled together plate.
That would not be available to the survivors on Istvaan III.
These are the last of the World Eater infantry I plan to do before the game at Historicon. I still have one Contemptor to do and some drop pods but the infantry are done.
Next up will be the mentioned vehicles but I will probably actually start on some Sons of Horus next. I have a heavy support squad assembled and since I mixed a pot of paint for the Sons of Horus I might as well get to them while it is still fresh.