Class Ranking for end of game

I feel like there should be a a class ranking for the end of the game, as in like there’s already squad ranking personal scoreboard. Why not add one for specific class rankings? 
Basically my idea would actually give more of a push for players to play certain classes, during the game you’d also be able to see how many players on your team specifically are in each category. The best of each class gets an XP bonus. 
so if you want an end of game xp bonus and you see your team only has 5 support your best bet would be to play support and try to get as many revives as possible. It would make the game have more evenly balanced classes for each team rather than 500 snipers on one team.