Also, it is my opinion that we should not discriminate animals based on their race. How fair would that be?
If we add dogs, we should also add;
-horses (yes those famous Polish cavalry charges against mechanized armor, they could get to the maproom quicker),
-rats (concealed explosive devices in carcasses, used by Germans in WW2. Could plant next to maproom and watch troops explode),
-pigeons (not messenger, but the bomb guiding ones. Drop bombs and let the pigeons guide the),
-bats (used as incendiary bombs, google 'bat bomb'. Launched from special bat bomb pads on medium and large airfields)
-mules (alternative to M3 or C-47 for carrying supplies. Edit: Stealthy, mules would not stand out from the countryside).
I think these ideas have potential, and will add much needed realism to the game.