well my name ShArP game from when i joined my first squad i think back in 2002-2003ish. i always used the name sharpshooter or i think it was like $}{/-\rpsh00ter or something of that sorts and when i joined my first squad i had to shorten my name so i choose sharp and everyone else in the squad had every other letter capitalized so i thought it was cool and that is where ShArP came from
and i have no clue where i started using the name sharpshooter from because the name i used before that was supersniper, think i might have been inspired by the marine sharpshooters