But all this commanders in CoH2... I must buy them separate?.. And without buying any additional game will not be soo interesting or?..
I think I dont get it.
FOr example, I want to find smg like Terror doctrine from CoH1 in CoH2. Is it possible?
I'll point you her for how to get the game and what version to get:
http://www.coh2.org/news/37043/the-confused-consumer-a-buyer-s-guide-to-coh2
As for the rest:
Ostheer start with 6 Commanders and there are maybe 20 total.
There are 4 ways to get the rest:
1) Sign up for the Relic forums and you can get the Community Defensive Commander (which is terrible)
2) Every so often there is a special event or release that allows one to get a commander. This has happened for two separate commanders
3) Pay money in the in game store. All bar 1 are available that way. I really wouldn't bother at this stage unless you have money to spare, the 6 starting ones are perfectly ok to learn the game with. If later you decide you want to get some more then people can advise you what is good or may fit your style - or wait for free weekend to try stuff out or steam sale to get stuff cheap
4) Warspoils.
This enables you to get everything, every couple of hours or so of gameplay you get a random drop (up to 3 in fact) of Commander, Skin, Faceplate, Bulletin, Skin or Victory Strike. However you get no control over what you get and it might be for a faction you don't play