[quote=@Jbcool]
[@Andreyich] They are mentioned as a disparate people, some still serving in the Guard, while others live isolated across the Imperium. I'm not adverse to the idea, I simply fail to see why you'd bother having a Squat when a broad and bearded (or not) human would do just as well...

If you're really all that keen though, and can come up with a good reason why they'd be part of the Emperor's Glorious Navy, then I'll consider it.
[/quote]

Because they do not have the same lore. A Squat has the story of his people damaged, lost, clinging to the Imperium like a sickly babe to a tit, trying to keep themselves unique and not wholly assimilated. 

I like to stay in the comfort zone of a GM though so I will go with something else. So as earlier suggested, a Navigator or Fleet Comissar alright?