A main battle tank ( MBT ) , also known as a battle tank or universal tank , is a self-propelled armored fighting vehicle , capable of heavy firepower , primarily of a high muzzle velocity direct fire main gun necessary to engage armored and other targets , with high cross-country mobility , with a high level of self-protection , and which is not designed and equipped primarily to transport combat troops .
A main battle tank ( MBT ) , also called a battle tank , is a tank that is used as the most powerful combat vehicle in modern armies .