Depends. Where I work we have X floating liscences. If from home you can connect to your liscence server, then it is perfectly legal. Really not much difference from using it on-location at work, you are just slightly further removed.
I don't know if SW does site liscening...before SW we used...
Well the turretless AFV has been around for quite some time. Nomenclature wise, isn't really called a tank. Self-propelled gun or tank destroyer. US really hasn't fielded (to my knowledge) many of this design. USMC used something similar, turretless AFV with six recoilless rifles mounted on it...
