This video only shows how to get 1 star on the Challenge Map Inside and Out for Overrun Compound. If you are stuck on this map and it is the only thing blocking you from progressing, use this method.
I use 3 scouts for their extra step and all of them have The Wrestler trait on their armor. If all the 3 lockers are not blocked in the beginning, try to go for all 3. There should be at least 1 side that has only 1 walker (or none) for one of your scouts to survive an attack. Make sure your strongest melee that can take a hit goes to the side where there are only 1 of 2 walkers so he/she can take a punch and still be OK.
