Ok..here is a link to a "basic" Rcon tool that works with gameservers.com servers... use PORT +1 in connect..http://www.mycrysis.com/forums/viewtopic.php?f=65&t=61191
find the file at end of first page by Bonemind...
You can all thank me later for finding it..
Note: it does error out after to many executes.. but it does work and can get your reserveplayerlist etc working..
And ofcourse kick and ban.. very basic..but works..