I think it would be interesting if the "mission" of the troops could be expanded a little. Give the ten troops Garands, a bazooka and a BAR with the ability to destroy a building set, or one aa position, if any still stand in the town. If a squad of ten destroys a building they could not be reassigned to go to the map room. But another set could take the map room. It would still take a full ten man squad to accomplish any mission, like destroy a building, or take the map room, so the town still would have to be very near down, or a dead squad member will render that squad mission null. Some sort of proximity detection would determine if the squad went to a building set that was still up or not - i.e. if they were released closer to the map room, then they'd go to the map room and not the building set. So that would mean being careful about where you release them too.
But as Arlo says, I can't imagine seeing HTC put much time put in on troops. But maybe some day.