Colonel Schaefers Last Chancers. Although the "Dirty Dozen" theme is a bit old too.
Does it have to be a "War" thing? Plenty of intrigue, corruption, scheming, brutality, exploitation, subversion etc. to take inspiration from. Heck, Blade Runner could have been set in the WH40K universe. I wouldn't mind another dystopian crime/bounty hunter story. Ferret out the threats from deviant cults, corrupt governors, apostates, heretics, mutants, aliens, etc.