Mikoyan-Gurevich MiG-3, part four

The majority of MiG-3 serving with the VVS were transferred to the PVO, where their flaws at low altittude weren't so important. On 10th July 1941 two-hundred and ninety nine were assigned to the PVO (the Soviet Aerial Defence corps) with most of them being assigned to the 6th PVO corps at Moscow. That transference left the VVS with just 293 MiG-3 and the Naval Aviation with just 60. Six-hundred and fifty-two aircrafts in total in spite of the expected thousand of them.
That way, when Germany launched the Operation Typhoon (the offensive against Moscow) on 1st October 1941, 257 were under VVS' command, 209 to the PVO and 46 to the Naval Aviation. A total of just 512, one-hundred and forty less from 10th July. However, on 5th December, when the USSR launched the counter-attack at Moscow that drove the Germans back, a total of 552 machines were active, 210 with the VVS, 309 with the PVO and 33 with the Naval Aviation.
During the winter of 1941-1942 the remaining MiG-3 were transferred completely to the Naval Aviation and the PVO leaving the VVS without any of them. That way, on 1st May 1942 the Naval Aviation had 37 aircrafts under their command and the PVO had 323.
Its usage went gradually decreasing and, by 1st June 1944 only the PVO had some of them, 17 to be more precisse, in active service and they were completely gone by 1st January 1945. It's obvious that, even if they weren't employed in combat, they were used as trainers.
Even with its many flaws, Aleksandr Pokryshkin, the third leading Soviet, and Allied, ace of the war, recalled about the MiG-3:
"Its designers rarely succeeded in matching both the fighter's flight characteristics with its firepower... the operational advantage of the MiG-3 seemed to be obscured by its certain defects. However, these advantages could undoubtedly by exploited by a pilot able to discover them".

Sources:
1. https://en.wikipedia.org/wiki/Mikoyan-Gurevich_MiG-3
2. Salamander Books - The Complete Book of Fighters
3. Signal Squadron - Aircraft In action 204 - Early Mig Fighters in Action