It was in these factories that Filitov and Ustinov first met, the scarred combat veteran and the gruff apparatchik detailed by Stalin to produce enough tools to drive the hated invaders back. After a few clashes, the young Ustinov came to recognize that Filitov was totally fearless and would not be bullied on a question involving quality control or fighting efficiency. In the midst of one disagreement, Filitov had practically dragged Ustinov into the turret of a tank and taken it through a combat training course to make his point. Ustinov was the sort who only had to be shown something once, and they soon became fast friends. He could not fail to admire the courage of a soldier who could say no to the people's commissar of armaments. By mid-1944 Filitov was a permanent part of his staff, a special inspector—in short, a hatchet man. When there was a problem at a factory, Filitov saw that it was settled, quickly. The three gold stars and the crippling injuries were usually enough to persuade the factory bosses to mend their ways—and if not, Misha had the booming voice and vocabulary to make a sergeant major wince.

Never a high party official, Filitov gave his boss valuable input from people in the field. He still worked closely with the tank design and production teams, often taking a prototype or randomly chosen production model through a test course with a team of picked veterans to see for himself how well things worked. Crippled arm or not, it was said that Filitov was among the best gunners in the Soviet Union. And he was a humble man. In 1965 Ustinov thought to surprise his friend with general's stars and was somewhat angered by Filitov's reaction—he had not earned them on the field of battle, and that was the only way a man could earn stars. A rather impolitic remark, as Ustinov wore the uniform of a marshal of the Soviet Union, earned for his Party work and industrial management, it nevertheless demonstrated that Filitov was a true New Soviet Man, proud of what he was and mindful of his limitations.