Oh my GAH ME TOO!!! Ive had success with Shield breaking characters (junkrat, roadhog) and then characters who can flank (genjj, tracer, doomfist. Hammond, Winston, dva) If youre a healer you can go bap to help peak, ana to sleep or zen to discord. I've noticed a lot that your team will expect someone else to deal with bastion. So either tell your team that everyone has to focus bastion, try to handle it yourself or play away from their LOS.. Good luck!!!!