Trucks and wagons which escape automatically take any supply they are carrying with them. Reserves are in effect units which have not moved yet. I am using Guderian's Blitzkrieg for my playtest of this system. If at least one side bids at least 10 supply points, then whoever bid higher is the Active Player. If he does not spend at least what he bid, the difference must be removed from the map anyway and is lost.
Bids represent the amount of planned activity.
These missions can not result in bombing. The heart of the game. If there is no Active Player, put in an equal number of chits for each side equal to twice the highest bid. German bid is doubled for purposes of seeing who goes first, so Germany wins initiative. Nobody bid 10 so there is no Active Player.