Of course it does matter what BO and capping order you go with, the fact that you have 4 rifles or 4 RE's is complitely different in terms of map control and all in potential, basically you need both, but you are complitely disregarding the fact that RE's are not good combat units until they have BARs and even then they are not nearly as useful as a rifle with grenades upgraded or any other kind of upgrade on them which means if your opponent wants he can go for you cut offs without many problems and believe me when I say that USF is the one that needs more fuel in the ostheer match up.
Ostheer is never going to be utterly trash against USF for the simple fact that they have a unit that USF don't which is a sniper (quite an important unit might I add), this statement reminds of the league of legends forums where if a nerf comes in the champion is immediately called trash but magically makes a reapperance some time later because people find out the nerf wasn't actually that bad, sure grens got nerfed but that was warrented since USF is going to use rifles all game and grens have less reinforcing cost its just fair that the rifles need to be stronger (its mostly a design issue with ostheer that I have talked about in my interview but grens shouldnt compare to rifles). What you can do as ostheer is play around the fact you have access to an early MG and a sniper, which will boil down to which map you are playing since MGs are more or less effective on some maps. Note: t3 is very useful as ostheer.
OKW is badly designed overall, they can beat USF but they rely on doctrinal units to do it which isn't great, as OKW you have access to the volksgrenadiers which are a cheap unit and can maintain decent map control.
That would depend, I like to use the doctrine with the puma to have a counter to those, all factions are reliable on infantry warfare not sure why you are pointing axis factions as the only one, sure people right now in this meta prefer to rush vehicels but that doesn't mean that infantry play is less or more important in that faction, its just the fact that both USF and soviets are better off rushing an early vehicel (pretty much like when in vcoh you rushed m8, it doesn't mean your rifle play wasnt important) so Im not sure where you are coming out of here.
I didn't say I discovered anything anywhere in the guide I think so please stop trying to state things I haven't said .
BO for USF doesnt count as much as for ostheer and OKW, these factions need to decide which unit will be useful right now, well, if ostheer goes for gren spam and USF M20 so it's obvious that M20 will not only bleed on MP but on munis, most important resource for them (much more than fuel in early), they can't counter it so early, they must tech, spend MP and time to get those things up, and still it's not perfect counter (M20 crew got zook for 222 and veh itself smoke -> ostheer needs doc with smoke, and it's even more expensive i think), note that USF doesnt have to build tiers, and they get free BAR/zooks unit when teching which is rewarding too much (yea USF teching actually rewards), best option for ostheer is by going like 1-2 snipers but then USF must be retarded to not counter it with hmm... lets say M20 rush? or later on rifle BAR blob? so snipers are only useful in hard defense, even in base on some maps, they can bleed on MP but can't promise better map control
you say that Grens costs less to reinforce? ain't grens 30 MP while rifles like 28? also you think that MG is any good? one good flank and it's done, killed or retreat, IMO ostheer MG is worst of its kind, doesnt suppress much (compare Dshka or vickers, they seem to insta pin things)
you get Puma only to counter enemy vehs, maybe some early med tanks, sure, but it's still a doctrine unit, how many doctrines you know with early access to anti-tank vehicles, none, you are forced to pick a doctrine with puma to counter enemy early non doctrinal vehicle while they can choose which OP heavy tank to get later on, i also used Puma doctrine a lot, but when they get heavy stuff, IS-2 or so, they are useless then and you are left with no late game stuff
Since CoH2 doesn't have much depth to it, its easy to find a strategy that differenciates itself from others in terms of viability, m20 rush being one of them. Also I never said that you need to go rifle company, neither that you need to blob (See how I played in OCF). Quality post overall .
All other factions needs good starting strategy like BO and where to go cap, defend etc, USF is only one where BO doesnt really count because this faction is meant to be aggressive, it's meant to do what your opponent can't counter and not (like ostheer for example) make units to counter something. that's why IMO USF doesn't care about starting BO, who cares if you go 3 rifles 3 RE, 10 RE or 5 rifles since they will always get better map control and be aggresive.
Since the gren nerf (after ninja buff Kappa) the ostheer is utterly trash, you may say im wrong but what can ostheer do, or what you do? gren spam and then 2 snipers because that's only viable counter to rifles, then you get ofc only choice, call-in Tiger cuz teching T4 doesnt give you a good tank vs everything.
OKW also can't beat USF in early, they also stay in one spot with med truck with few points and try to do something while USF overwhelm them with resources income, map control.
Well, all axis factions depends on early infantry warfare, positioning and defending, they don't have early inf wrecker like T-70/M20/AA HT so all depends on early BO
What you describe in your strat guide is what actually 95% people do, so you didn't discover anything