A supply base for aircraft might not be necessary.
I’m not particularly skilled, but I do fly helicopters and jets.
As a player who uses both infantry and vehicles, I believe that resupply stations for air vehicles are unnecessary.
While these stations allow for a fast-paced, intense gameplay experience by enabling players to quickly rearm and return to the front lines, they also mean that once the match balance tips even slightly, powerful air vehicles can instantly decide the outcome, regardless of how many tickets remain.
Personally, I think removing these resupply stations would make it easier to adjust the game's balance—an issue frequently raised by the community.
Since removing the stations would leave air vehicles largely defenseless, I suggest simultaneously reverting the CIWS performance at the HQ to its launch-day state to ensure vehicles are fully protected there.