User blog comment:Damac1214/Some Zombie Polls with Some Extinction Polls Thrown in for Good Measure/@comment-67.168.154.162-20140115163417/@comment-5358304-20140115212819

That's not what lag compensation does. Long story short, it accounts for the latency that is always present and makes it so the hitbox matches up to the player model. If there was no lag compensation, you would need to lead your shots.