Red Typhoon by Revolution Games.
Covering the Soviet 1942 Winter counter-offensive in front of Moscow.
An enjoyable game that manages to get quite a bit of nuance into just 5 pages of rules.
I have put a bit of a write-up over on the blog for anyone interested. It plays well solitaire, which may be a consideration at the moment.
LINK
http://battlefieldswarriors.blogspot.com/2020/03/red-typhoon-east-front-1942.html