This game was worthy of this thread:

I used Vorcha Reegar cheese class.
Low: Wave 3 (or was it 6?) was a defuse wave. After the first defuse, the team got totally distracted fighting the onslaught, so I got the rest of the devices without help. I think the countdown stopped around 1:30 remaining.
High: 75th kill during just wave 6.
Low: I killed a majority of the enemies.
High: I got to bring a group to extraction that otherwise wouldn't have made it.
Low: I had to carry and defuse several totally flanked situations.
Low: 30 minutes!
Low: I had to go to the washroom around wave 7 from drinking a pot of tea.
High: Found a corner and went to the washroom near the end of wave 9.
High: Wave 9 had just ended when I came back and I hadn't died.
Low: Had to use 3 or 4 medigel. Unacceptable.
High: Plenty of opportunity for nice cluster grenade combos.
High: Despite many, many team deaths, I might have only solo'd for one wave if that. For that reason, I wasn't particularly upset at my team when we finished.
High: Ye old "I had my team's score combined" achievement.
Low: Those games are rarely fun in my experience.
High: SEVEN gold medals!
High: Full extraction.
High: This happened:

I've carried before, but this was a singular experience.