That's pretty much what I was thinking, a bunch of special missions or special rules, eg prisoner-rescue, firefights in cities where one side (generally only side!) can't shoot the meatshields, finding the survivors of a crashed shuttle, kill-team-style 'kidnap the scientists' type missions or whatever.
Also trying to model some civilian vehicles for CoD boards - I've not read a lot of the 40k novels so I only have a hazy idea of the civilian side of the Imprium works or even what it looks like, but i find myself going 'hmm, that shampoo bottle might make a cool groundcar' - but for whom?
It's a bit naff putting time and effort into painting armies and making terrain, then going "oh we'll just use these LOTR High Elves as civvies, just ignore the swords and armour. And pointy ears. Oh, and we'll use this Chaos Rhino and an old Goblin chariot as civilian vehicles."
:cyclops: