I always have to play with bots and THEY DONT TAKE THE PACHIMARI
I be happy to help (long as I can pick Mei, I kinda suck as others sorry!)
just a note for those unaware, it must be done in Expert or Legendary, not sure if they fixed it since i did it 2 weeks ago but any other and it would not pop
Also might be best to say what region you play on, I am on EU but could see if i wont lag on other servers, often NA is fine for me too some days