I actually like this idea. You get a straigthforward quest: rescue some pigs. Probably from predators, or bandits.
Then you step on the first landmine, boom.
Reload, slow and careful, Search turned on. One mine..another..two more...five, ten..
WHY IS THERE A MINEFIELD HERE AND HOW DID THE PIGS GET OVER IT?!
I mean, it would be a funny surprise. And very Fallouty/Wastelandy. :D