not going to comment on the skill of the cs players, but i know that it can be relatively easy to pick just the absoulte best shots that u have from 3-4 months of play and turn them into a vid like that around 7 minutes long. for those of you curious about the best bf2 players, those i can list.
1. SnArF (Paradigm Shift) infamous for continiously "breaking the game", supposedly he was the one that first discovered the prone spam glitch, along with the c4 glitch
2. DEP (ex warchild, now 20ID) one of the only top infantry players still in active competition, is widely known for his aim
3.Rust (Paradigm Shift) I have played against him the most often of all these players, and he is a very smart player
4.biggytim (ex sk, now eviscerate) probably the best shot in the game, hands down.
5.peacemaker (ex sk, takin a break for a lil) the only person on sk that consistently players better than biggytim, he doesnt have biggys shot but his positioning and play tend to be alot smarter
other top bf2 infantry, in no particular order
"I don't believe in yesterday, by the way." - John Lennon