What Achievement are you most proud of?

Mine is on COD 4MW The mile high club when I was 7 years old I did it multiple times, to this day I don't know how 7 year old me did it, but I did and I am very proud of it.

There was this achievement in cod4: "what the..." to kill someone with claymore explosion caused by shooting through wall. I was very proud when i finally managed to get it :D

There was this achievement in cod4: "what the..." to kill someone with claymore explosion caused by shooting through wall. I was very proud when i finally managed to get it :D