This image represents a LaGG-3 of the 3 Gv.IAP of Red Banner Baltic Fleet during the winter of 1942/43, east of Lake Ladoga.
It was flown by Sgt. Tikhon Svirido Zhuchkov; that reached the unit in December 1942 and flew as wingman to Dmitrii Tatarenko; later, he became a Starshii Leitenant and deputy eskadrilya commander; he was made Hero of the Soviet Union on March 6, 1945, having obtained a total of 10 personal and 11 shared victories in 321 engagements. He continued service after the war until 1960.
On the ground, we see a compressed air bottle to refuel the pneumatic system of the aircraft before taking off.
The aircraft was probably of 35th series of 1942, and its characteristics are:

• rounded prop spinner for VISh-105SV propeller;
• triple exhaust stacks;
• 1 ShVAK 20 mm firing through the propeller shaft;
• 1 12,7 UB machine gun guns on the left side of the engine cowling, and relative holes on the left side of the cowling;
• engine cowling with fast lock and merged intake profile;
• engine side cowling panels divided by a vertical line under exhaust stacks front;
• no side plates behind the exhaust stacks;
• vertical slots in front of the windscreen;
• rectangular supercharger intakes;
• long radio mast;
• angled rudder hinging line;
• modified elevators with modified hinge line and wider trimmers;
• wider water cooler inlet;
• water cooler outlet on the fuselage without any step;
• retractable tail wheel with bulged doors;
• wing slats, pitot on the lower wing surface.

This aircraft is characterized by:  MK-7 white distemper over a  temperate scheme; the white spay forms a sort of wave mirror on the nose side; a typical 1942 camo scheme was hypothized, with AMT-4 green, AMT-6 black and AMT-7 light blue;  red stars on 6 positions;  small serial number over the rudder stars; red 52 painted on the sides, perhaps repainted over a previous white 52; probably black prop blades.