Overwatch - How To Give Your Teammate The Play Of The Game

I was playing the capture the flag event in Overwatch and the game was about to end when the enemy team made a final push and the Soldier 76 on my team had his Ult along with me as Ana having my Ult ready I boosted him then he sweeped the whole enemy team clean. Any of you have had any similar replays where you helped a teammate get a very good play of the game?