I've never done it, if your going to cheat, write a script, make yourself lvl 100 and give yourself a cigar, then delete game please
LOL, It's not cheating at all. Ask anyone who has ever played a competitive game of BF or COD and I think you will find a lot of players who do this.

What *is* cheating IMO, and is not uncommon in competitive FPS play, is recoil control macros, or placing a marker on the center of the screen.