coolfaceginger

Interesting as that may be, nothing in there shows him using thermal through smoke or even seeing through smoke. Improved visibility is not the same as rending smoke useless. Again, there is no reason for this to happen.
 
I know it can be frustrating and somewhat hard to believe that a teammate/friend is cheating, but I promise you that he is. Have you ever noticed that despite his incredible aim, he has very poor battle tactics even though he has more hours than either of us? He simply runs into the field and hopes that his "aim" will do the work. It's painful to watch him scope a tank from across the field, or snap lock/track a player 20 feet away with an 8x scope, then stumble around the battlefield. 
 
In any case, take solace in the fact that despite your hours and respectable stats he has nearly double your skill and K/D because he isn't a legitimate player.