Some troop-type ideas: -
1. Dropping troops near a Shore Battery and they take it out instead of running to the town.
2. Dropping troops near a Field and they take out an AA gun instead of running to the town.
3. Dropping troops on enemy troops and they all stop and shoot it out until last man standing.
4. We have pill boxes, m/g nests that need to be occupied by friendly troops. However, like Vehicle Supplies, this effect doesn't last long.
-- Dropping your own troops in own town, on own field or on own Shore Battery poulates the pill boxes, m/g nests to defend against enemy troops.
6. Perked 'Special Forces' can be given a specific military target - i.e. defensive gun, Radar or a Bomber/Fighter/Vehicle Hanger and they take it out if they survive.