Tank challenges in air battles (AB)

In tank battles there is possible to enter aircraft combat. I suggest to do something similar for air battles in Arcade mode. In the moment when team GF met enemy GF, there could be a such challenge. To make the combat fair, it would be better if such challenge could be offered only if the combat would be balance. No one would like to join combat 2 vs 5. This challange could be entered if at least two players on one side and two players on opposite side would be ready to join tank battle. One problem with this is, that it is not possible to park an aircraft in the air, so here is few suggestions how to solve the problem:

a) if at least two players landed on airfields then they can join such battle (1 friendly team and 1 enemy team).
b) add a choice to enter the game to those players who were killed
c) add a choice to enter the game to those players who were killed and have a tank crew trained for the machines which are in the game (this would decrease the chance to make such match dramatically).