The Winter War campaign covers a very unique setting during WW2 turn-based games by letting us play the Finish army. You are relying mainly on infantry units with support. Armored vehicles are scarce and the soviet enemy can have overwhelming strength in some scenarios. I played on medium difficulty and enjoyed the whole campaign. The objectives are very varied and - at least at medium difficulty - all can be completed. Although in my opinion it is not that terrible, if you miss a secondary objective from time to time. You can still keep on playing and it is also a bit more realistic. The price is a bit high as for all of the Order of battle campaigns; but they are on sale often enough to get them with a discount.