You mean the ifrared type by VS? Have tested those already, it seems that only a certain no. of tanks ...max 6 if I m not wrong can engage at one time cos of freqnecy clash. And when played outside under bright sunny conditions can hardly hit each other even from 3 feet away!!!!

Motor come with gearbox. You don't need to buy motor separately unless you're looking for something like better proportional speed or more torque motor.

hitz, where do you live? You can try check at Mudah, company name Cye Toyz Ent.