I suggest giving low levels a bonus experience if they play against a team where there are more players with a high level.Because it is difficult for beginners to play against mg \ panthers\ tigers \ ppsh\t-50.
And they should receive some kind of compensation for suffering.I think it will reduce the number of people who delete the game.
I think it can be done this way.
If the totality of the enemy team’s levels is higher by 1, then the player gets a + 1% bonus to experience, or + 2%.