i was prepairing to pwn the guy coming around the corner..idk what else you want me to say...i was playing like i normally do...the way it happen was like this..i just got done shooting someone in the head in the projector room in office going to the side where there are two room you can go into..heard the guy coming around the corner waiting for him saw his shadow briefly begun to shoot and head shot..which in my opinion its a lot ezer to do in source..but neway i hope this helps..