The BH handbook says (right on page 8) that with multiplayer games, the players on each side become one player. The way I read it: if one Allied player has two Spitfires and another Allied player has two Hurricanes, they don't alternate movement with their opponent one at a time. They, in fact, alternate with their opponent two at a time. So, in a situation where four Allied aircraft are going up against four Axis aircraft, with four players controlling two aircraft each, two Hurricanes move, then two Axis aircraft move, then the two Spitfires move, then the final two Axis aircraft move. That sound about right?
Those who don't remember their history are bound to do something or other...
The way I read it is that you would move *ALL* Axis planes and then you would move *ALL* Allied planes. It would also work this way if you had an uneven number of players and/or planes.