Whats the pros and cons on turning out of a modern tanks with thermals for example?If the commander has his head out of the hatch does that mean he's no longer using the thermals? Same question for some small vehicles like hummer with the laser designator, Because if the "gunner" isn't inside the vehicle because his heads out the hatch then hes not using the screen inside to scan with thermals right?Just trying to figure out if i'm doing it wrong is all, Cheers.