I have acquired one of these models with the intent to use it in a Renegade Guard army using an Astra Militarum list (not the Forge World Renegades one).
Is there a model that jumps out at you as this being the most appropriate to count as? I already have a commissar lord but I'm not totally against using this one instead/in addition.
Is there any reason this model wouldn't be appropriate to count as an Eversor Assassin, with a little needle on the bolter perhaps? Do I need to buy that new Imperial book to field an assassin? Would folks have a problem with an assassin in a Renegade army (not necessarily supposed to be an actual renegade assassin fluff-wise)? Are there any force organization restrictions on assassins?