there is no reason for mei to be a dps, she has more tanking abilities than most tanks yet somehow its just fine and dandy to let doubleshield mei be a thing. fix this crap already, im going to leave every single game with a mei on either team until she is moved.
Make it so teammates can shoot through the wall, but for half damage just because it sounds cool off the top of my head, and make the wall clear ice so we can see the enemies.
Done! Mei is a tank!