donno.i never looked much into this.
i did read , alot about this one:
King Tiger no.314 which was commanded by Georg Diers got the orders to set up a defensive position close to Reichstag and the Führerbunker. As they got closer to their objective, the crew inside the tank noticed increased Russian radio traffic. When King Tiger arrived to the scene, Diers spotted around thirty Russian T34s to his right close to the Kroll Opera House building.
After briefing the crew, Diers stormed around the corner, opened fire and managed to knock out almost all of them. King Tiger no.314 destroyed 39 Soviet tanks (IS-2s and T-34s) during the last days of the Battle of Berlin, and the largest part of this number had been achieved during this engagement.
This happened on the afternoon of 30 of April 1945, the same day Hitler killed himself. Following the Hitler`s death, some Germans decided to attempt a breakthrough and escape the Russian encirclement. For this final attack, all running vehicles were placed together, with the King Tiger under the command of Diers.
The assault started just before midnight on May the 1st. There were many high-ranking Germans in the group, including Martin Bormann. They tried to push through Friedrichstraße station.
King Tiger no.314 pushed forward through heavy fire losing all infantry support in the process. Ironically, despite the successful advance of the tank, it was disabled soon after by a German mine.
Georg Diers and his crew abandoned the tank. But, they failed to reach the Allied lines. All of them, except his loader Alex Sommer (who was shot in the stomach and declared missing), were eventually captured by Soviets. They were all released from captivity in 1949, four years after the war. Diers later wrote a book called “Tiger in Berlin“.