Is it possible to limit the total number of helis to one? Otherwise 5 team members can call 5 helis at the same time. Which can be bad for the server.

I would like to be able to limit the number of helicopters called per player and per team.
On my server, I made cooldown for 5 minutes so that players who love to shoot down helicopters would just enjoy the game.
Everything was fine for 2 months, but there were two players who just called helicopters every 5 minutes and didn't shoot them down. This heavily loaded the server.
I would like to be able to exclude such a situation without cooldown restrictions for all players.