There are a great many rpg's out there that off character flaws for interesting role playing, and then offer the players some kind of reward for such. My players have a moderately shallow background for their characters so far, given that 90% of the generation was done on the random table. So I'd like to find a way to encourage a deeper roleplay for these guys.
Does anyone have any suggestions on how to introduce flaws/perks for a character in this game? My thought was to take the Deadlands list of hinderances and edges, but merely convert the numbers and affects to something within the 40k rules.

But that is not the kind of reply you asked for in the first place, so let me try something more constructive for your topic (and thanks for bearing me!): 