I have a server using csdm with FFA, and i blocked the terrorist team, so al the players playing are CT's.
I have a problem with rank, the new players (with stats all in 0) are showed in first place, and the better players are at the bottom.
So I think that the problem comes from the native get_user_stats, but by the other hand when csdm ffa is on, the score showed it's ok. And when you see the stats from the rank, the kills aren't in negative numbers..