So I have decided to make an Alpha Legion army by using Ahazra Redth from IA10 to give my entire army infiltrate. But I have refreshed some of my lore on Alpha Legion and apparently they have not been mutated by chaos (yet) and their battlecry is "For the Emperor!" which I think is for mocking reasons and not that they are secretly working in the Emperor's interests.... So the issue is which models to use? Should I use the loyalist space marine models and mockingly paint them alpha legion colors with Imperial symbols mockingly kept on. I mean if they infiltrate worlds I'd think the locals would not be able to tell the difference between Chaos space marines or space marines unless they are covered in Chaos symbols. This means that Alpha Legion could pose as loyalist marines and backstab their Imperial allies when they moment suits their need. But then again they are Chaos space marines. Even though it is ambiguous which side they are working for they clearly have betrayed the Imperium and the Emperor. So what do you think? Loyalist Space Marine models or Chaos Space Marine models?
Or should I say screw fluff and paint Loyalist marines in American flag colors, I saw a great looking army like this before called the Stars of Dorn.
I know this could go under either Modeling/Painting or Background but it is too much of both to fit either forums so I thought General would be appropriate.