I was thinking about such an interesting thing.
But what if there were some very popular and official paintball tournaments and you could bet on them?
Imagine being broadcast live and people are making live bets. This is extremely interesting and exciting. It seems to me that this kind of betting would be more popular than any football!
By the way, the ExBet bookmaker has a huge set of non-sports bets even without paintball (the information was taken here https://xbet-app-in.com/1xbet-movie/). But it's worth considering.