[quote=@Lord Coake]
If a custom Homeworld and IG regiment isn't allowed, I can alter it

[/quote]

With a good enough reason for how Caius ended up in the task force, it would certainly work :)

After all, many regiments tend to be rather stubborn when it comes to lending their soldiers. Perhaps Caius could be part of a deal to repay a debt the regiment owed to the Planetary Governor of Hive World "Solaire 2".