Barry Doyle, the original designer of V & V, is also testing the game and reported the following bug.
German half squad from Sandbags advanced and JOINED the British Commandos in the adjacent building (Axis Turn 4 Advance)!
-Then the German half squad joined the Allied Fire Phase attack
-Then the Commando stack switched sides and “joined” the Germans (German moved to the top of the stack at the beginning of the Axis Turn 5) in the last Turn, and fired on the other Commandos!
I managed to convince him this was a new feature we added called “Infiltration” but would remove it. So sorry you won’t see this in the final game.