To be frank this challenge is just a waste of time and I do play it just because my teammates want that emblem. The last opponent is the clearest random example - no matter how hard you try or what strategies you use you gonna lose in the 80-90% of the games you play. That means you can win only once in every 8-9 games. The accuracy of the opponent's shooting in 90% of the cases is 100%, which means he scores 3 goals out of 3 shoots when you have 11 e.g.

Finally playing just with the same tactic I have lost 11-0 and in the next match won 4-1. Now please, explain to me - what's the fun in watching the bot always beating your team?!