Was playing on this server with him, he lands on the red base. I'm flying my plane behind his view, he's occupied shooting some guy and gets the kill, while I'm parachuting pretty far behind him. I fire a sniper shot, it lands far enough behind him just to make the sound, he quickly snaps around and snipes me, first shot. I had no time to react after I saw him turn around before I was dead.
Raven, You, and a few other friends were on Glass's trench server a few weeks ago. I was hiding on top of a trench wall crouched. The only spot people could see me is from behind me. I see Raven coming closer to our base. He's looking at the bottom of our wall. I quickly jump up, aim towards his direction, I get my crosshair on him and about to pull the trigger, and I'm already getting pushed back by his magnum. He couldn't have possibly seen me as he was focused on the bottom of the wall. This happened throughout the map. Everyone on my team noticed this. He continues to deny it.
I can't say he has an aimbot for sure, because we don't know 100%. However, based off first hand evidence, I would say he does.