One of the accounts for sale is called "The Main Sniper". It has a 50 in Team Doubles and Slayer, it also has a 45 in MLG. It has a total of 765 exp with a 1.97 ranked k/d ratio.
http://www.bungie.net/Stats/Halo3/Default.aspx?player=The+Main+Sniper&sg=0
The other account is called "chaos...