Well i was making some modifications on all cstrike game files until i tested up with bots and founded this bug. its basically simple, you shoot another player but the bullets are reflected like when you use a shield, when he is not using a shield. i have no clue about this.
please any help will be appreciated. 
thanks (yes i searched in google but i found invisible shield skin, and find nothing here at main forums)edit: sorry about double post. i hit twice.
here is an attachment:
