How many do you think is required 5? I never seem to have enough MP to do what I want to do. My strategy against the USF and therefore my economy and unit timings aren't quite in line with where i want them to be.
Well, against usf the first 5 - 10 minutes are the hardest time for me. The only thing I always try is just cap, not fight too much, just cap and cap... and cap... and pray he doesn´t take infantry that m1919 is a horror to fight against as okw.
How many volks? I think as many as are needed- 5+ ( most usf get 3+ rifles and lt.) definitely and try not to lose them... Use buildings, cover and try to survive.
Volks are cheap so... get as many as you want...
Med-hq or mech-hq first thats the decision the whole game can depend on . Med first is somekind safer, i guess, but mech-hq first can have a huge impact if he goes lt and you manage puma or flak-ht good enough so they survive + even iif you get the mech-hq after med-hq if he tries something like in your replay a stukabarrage can be realy devastating.
Schwerer-hq is a luxury vs usf, atleast for me and it´s highly dependant on the map.