Dear Kabam's Team of Software Development,
as you know, there are cheaters that use bot-arena that fight for continues for hours and hours during all days and all nights.
The solution is really simple to avoid that this person still do million of "illegal" points, therefore you can add CAPTCHA checking after 4/5 hours (randomly) of game to cancel and lock the progress of BOT program.
Unfortunately there are many “illegal" winners, that at 70% using BOT and Auto-fighting system.
Following a really hard CAPTCHA test that cannot be resolved by BOT (for example this type):

In fact, if there is a real person on game, he need only 30seconds to reply to your CAPTCHA test and after can follow is game without issue. But if there is a BOT...it will stay locked until that a real person reply to CAPTCHA test.
@“NDK13” ,
@“DiablosUltimate” ,
@“Player1994” ,
@“Ricardobalto” ,
@“Chris_L_H” ,
@“GroundedWisdom” ,
@“Icehawklb” ,
@“Dropfaith” ,
@“ninexhelix” ,
@“Onmix” ,
@“Thecrusher_9756” ,
@“Dshu” ,
@“ILovePonies” ,
@“CpcBoyboy ” ,
@“Gwendoline” ,
@“Speedbump” ,
@“Noname54” Are you agreed ?
If yes please developed my suggestion (you need not more of 1 hours to do it, because you are professionist) and upload it on next monthly update of MCOC game.
Kind regards
Sayan2018