His known opponents:
26.9.44: Raid on Vadso. 2 Yak-7s and 1 P-40N lost (serious overclaiming by JG 5...)
27.9.44: There were 3 P-39s lost in action that date, versus at least 7 claims by JG 5
The Boston would have come from 36 MTAP. Walter Schuck is credited with an A-20G of 36 MTAP flown by Captain Protas baled out safely. Lt.Jermak. Lt.Bystrov and Sgt.Karlamov all KIA
Recommend this site to you:
http://ktsorens.tihlde.org/flyvrak/falkgarden.html
be sure to go back to the homepage and check out the other wrecks documented....
HTH
Nick