My favorite moment so far (Destiny)
So I'm playing in explore mode by myself and I get the public event where you have to take you the three extraction crews. Still by myself I proceed to clear out the first two and start in on the third. The third extraction crew proves a bit more difficult and I'm extremely low on health and about to die when a new player joins the event just in time. He unleashes his super just as I'm convinced I'm going to die and fail the public event! This kills off the remaining few enemies and we end up getting a silver! It was a great feeling.