I've been looking on the Renegades website and a few wikis to see if there is anything that gives some background to the characters, but there just isn't--which is a shame.I couldn't care less that they were criminals. The bigger crime in the film/pilot/episode is that they weren't compelling characters.
Fan films will never be able to pull off the slick looks and special effects of full-budget TV Trek, so more focus on the characters and their relationships is really where they should draw strength, which seems to be in short supply with Renegades (I found anyway).
I can understand wanting to keep things under wraps during production, but releasing character bios (or even short blurbs) now would've been good--even just to get what some of the characters' full names are.