Originally I had wanted, after the hedgerow blast, to get two full squads across a long field as quickly as possible. The first squad occupied the downstairs of the house, which had a back door right out to the hedgerow. I tried various "paused" locations for the second squad, upstairs, outside the front door, etc. What finally worked was to start with the first squad in the small space between the back door and the hedgerow, i.e., outside, and keep the second squad paused on the first floor until the first squad was already out the hedgerow.
Agreed, there's a way to skin the cat, but sometimes it takes some experimentation to figure out how.