I always call them modes: Tank1, Tank2, Tank3. Names are names, but being a real tank is the game. Then you have the available action with each of the Tanks. So far I'm a pro in one of the currect Tanking classes, and I'm sticking to it cause I know how to fully control it. I will try the new Tank class/job, but if I could not control as my current Tank job.. I won't insist on playing it for sake of the stated title 'coolness'.
