In February 1940, Batal'yonniy Komissar Shalimov served in the 149 IAP, which was equipped with Polikarpov I-153s and I-16s.

On 15 February 1940, seven I-16s and four I-153s from 149 IAP were escorting 26 SB-bombers to target No. 20 (Imatra hydropower station). At Lappeenranta, six Fokkers tried to intercept. Mayor Nikita Syusyukalov’s flight (Batal'yonniy Komissar Shalimov and Leytenant Vladimir Litvinenko) claimed two Fokkers, of which one ”was set afire” and the other ”crashed uncontrolled to the ground”. The other Fokkers escaped.
Syusyukalov saw a ”SB-like aircraft” in flames.
The Ilmavoimat didn’t lose any fighters during the day.

At 11:45 on 19 February, eleven I-153s and I-16s from 149 IAP were escorting 36 SB-bombers. At the target area, seven “Bulldogs” were encountered. During the air combats five enemy aircraft were claimed in the Lappeenranta-Sippola area by I-153 pilots; Mayor Nikita Syusyukalov and Batal’yonniy Komissar Shalimov shared one claim, Starshiy Leytenant Vilchik made two claims, Starshiy Leytenant Pidyukov one claim and Leytenant Pavlov one claim. Four of the 149 IAP aircraft returned damaged; Mayor Syusyukalov (38 bullet holes), Leytenant Pavlov (33 bullet holes), Leytenant Vladimir Litvinenko (15 bullet holes) and Leytenant Pidyukov (6 bullet holes).
These claims can’t be verified with Finnish records.

Shalimov ended the war with 1 shared biplane victory and a total of 3 shared.

Claims:

Kill no.	Date	Time	Number	Type	Result	Plane type	Serial no.	Locality	Unit
	1940
	15/02/40		1/3	Fokker (a)	Shared destroyed	Polikarpov		Lappeenranta	149 IAP
	15/02/40		1/3	Fokker (a)	Shared destroyed	Polikarpov		Lappeenranta	149 IAP
	19/02/40	11:45	1/2	Bulldog (b)	Shared destroyed	I-153		Lappeenranta-Sippola area	149 IAP

Biplane victories: 1 shared destroyed.
TOTAL: 3 shared destroyed.
(a) These claims can’t be verified with Finnish records.
(b) Not verified with Finnish records.

Sources:
Red Stars 7 - Talvisota Ilmassa - The Winter War In the Air - Carl-Fredrik Geust, 2011 Apali Oy, Tampere, ISBN 978-952-5877-04-5