TO SCARE THE RIKOV WEAR STELTH CAMOFLAUGE AND SPIRIT CAMO THEN RUN UP IN FRONT OF RIKOV (YES THE *** WITH WHITE HAIR) TAKE OFF STELTH THEN QUICKLY PUT IT BACK ON THEN QUICKLY SHOOT HIM IN HIS RIGHT ARM,YOULL GO INTO ALERT MODE BUT HELL BE SCARED OF YOU HE WONT SOUND THE ALARM IF HE SEES YOU AGAIN VERY HELP FULL TO FOLLOW HIM INTO THE LOCKER ROOM
EDIT:ONLY WORKS ON EXTREME DIFICULTY AND MUST KILL EVERY BOSS NON LETHALY
EDIT:EDIT:DONT KNOW WHY MUST BE A GLITCH OF SOME KIND TRUST ME IT WORKS
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DONT MESS WITH THE MAN