Old clan match on Rainbow 6: Raven Shield against a clan called SAS-BX.
It was about 5 years ago, and I was still on 56k dialup. I ended up last man standing with an M60 LMG, whilst on Teamspeak with the guys againts the entire other team. I ducked into a corner and listened, heard a few guys, ran out firing and got a couple of kills, ran around the corner ane got another couple, bearing in mind my teammates were dying laughing through teamspeak my game was lagging so badly I was floating around the map. I heard the last guy, went around the corner, and he got me

Never mind, it was good fun.
56k + Teamspeak Bandwidth + Game = Lag