My favorite moment so far. The other team was protecting their payload with 2 torbbjorn players setting up turrets on an elevated area--the game is still new so those turrets were really eating people up.
Playing as Symmetra, I managed to sneak over close to them and remain out of their site. I noticed that 3 teammates had just died so I immediately placed a teleporter down. They all teleport to my area, we take out the turrets, and basically control the match from there.
Symm is my favorite character to use, I just wish she didn't feel so limited in certain parts of matches.