I'll try to locate a demo to illustrate what I'm talking about Chuck. In the meantime, I'll try to better explain it.

Usually, Ra!n knows where everyone is at. But if he gets surprised and doesn't know where the damage is coming from, he uncharactersistically holds down the firebutton instead of just tapping it; and is seen aiming WAY BELOW the feet of the enemy from a medium to long distance and gets kills that way; yeah, that's not right.
I tried to duplicate this method thinking it was an exploit. I couldn't. Not because I'm not good at the game or lack experience. I'm quite good at the game and generally score at the top or near the top even when my team is losing horribly.

This is how I learned that the new player Trip was Rain's friend. It's the same exact method. I asked him right after I saw it if he was Rain's friend and he said that they belong to some clan that scrims all the time. So yeah, I'm quite able to discern what I see with my own eyes.