heavy assault drone "Leviathan"
 
4 After World War II, the world no people left, but left a lot of battery technology, which is managed by the team of Mobile Fortresses of the former Union of the Eurasian Continent and the United Coalition of "freedom" (the former States of America)
Despite the fact that all human beings were exterminated in the global conflict, such machines as the Leviathan, as before, perform final orders are no longer existing command. Mnoggie machines are out of order, ability to make some stand on bases in combat readiness, and some are still fighting with autonomous vehicles of the enemy.
P.S. This is my first concept of the assault drone. If you have any suggestions, you can leave your comments, I draw this time. I would be very grateful to you.