They should make it so you get paired up with people with your level so you don't fight people who have ten times your HP and stuff + so the devs can see this
There should be a reward after you win a match besides XP not credits but maybe something that after you get lets say 100 of them you get one credit + if you agree
I would like to see maybe a Sandbox mode for this (Like in BTD5) so you could test out tactics and other things like to see if one tower is better then the other + if you agree