If you go to your My Documents folder, then open the Arma 2 other profile folder, then there is a folder with your in game name, open that folder, then there should be another folder called saved(maybe, im recalling by memory from a week ago) dont go in that folder, but there should be a couple files in the folder that was your in game name.
the files should be called
NAME.arma-whatever
NAME.vars.arma-whatever
name is your in game player name and the arma-whatever is the other thing i cant recall what its called, just delete the .vars file and when you start up arma and join the server, you will be lvl 1 again with no xp or money.
hope this makes sense, im at work and recalling all from memory on how i figured out how to delete my lvl since i was lvl 30 and wanted it reset.
Thank you for explaining that for me.