(Fig.1)
In-game soldiers at this moment mostly look like this. No hair, only a sidecap on top of his head lonely.
(Fig.2)
But with proper Hair, Soldiers in-game will look much more better. Just like in real life, soldiers in-game must have their hair for the caps.
it will improve the historical accuracy, and each soldier would look more realistic.
(Fig.3)
(Fig.4)
and Actually, In the game files, we already have proper hairs!
This is a screenshot of a Soviet soldier with proper hair, and a pilotka (fig.2)
those screenshots are all made with only the mission editor, no any other touches.
Like the screenshots (fig.3, fig.4), adding a hair to the game would be a great thing.