I've always found it funny that the Soviet army was in such a crappy state after the Winter War. I would have thought that an army that had just been used in a costly war in which it proved sub par would have made some effort to replenish stocks of ammo, weapons and invest into better training and equipment in general. Yet our forces could more or less march right through them until close to Moscow with those horror stories of Soviet units only having three rifles for 100 soldiers and only every second guy being issued ammo and so on...