Lmao this has been going one for years and 3 different companies it’ll never be fixed “it’s to hard to fix”
Those are rookie numbers I’ve seen worse 
If Hot Head & Deca didn’t fix I doubt Super Charge will try and tackle the problem. If it’s for the co-op solo rewards just use those heroes on regular pvp to unlock the rewards. The other way start low then go high seems hit or miss at least to me anymore.