Oh no you didn't. How can you compare COD:WaW to DoD:S? They run different engines, point system is different, guns are modifiable and very different. Where and dod can you put a 50 round drum on a MP40? Hehe.
I think if you like COD4 and WWII history this game will suit you well. The Japanese use gorilla-like tactics just like they did in WWII (BANZAI!) and they hide in trees just like they did in WWII.
Of course Day of Defeat: Source will always be one of the best, because it was possibly the first FPS online game I had ever played.
You just cannot compare the COD: WaW and DoD:S accurately. Sucks for you if you did not try the beta, that's all I can really say. You missed out on a lot if you plan on buying this game. Youtube has some good videos of gameplay, check those out if you plan on buying the game.