[@SgtEasy] You might have to modify him towards the end of the backstory. Seeing as it [i]starts[/i] on Tatooine, I had the idea of having every Imperial Crawler to have some sort of Droid in to make sure Prisoners and Labour workers follow orders. You could have BD-5 be on ours, but due to his past and growth in knowledge, he could maybe not act against the attempt of escape. You might want to downgrade a weapon or two, as the Empire would've taken huge precautions. They'll be the chance to upgrade him along the way.