Hello ImSkemo,
I cant watch the replay right now but im going to try to help you.
In Semoskiy Winter I usually start with a Rear Echelon and 3 rifles. You should have more map control than your opponent.
Dont choose Lieutenant or Captain versus OKW until you know that a Puma is coming or a combo of Medic HQ + Flak HQ.
Get heal after 3rd rifle because you should not drain manpower.
Don`t risk your units, OKW players always play very defensive.
Howitzer is a good way (from captain)
Good luck