Basically in terms of old school tabletop & dice wargaming then W:EE pays homage to a 1/300 scale modern warfare rulebook. It even has a nod to modular terrain block hills. Great fun and very well thought out and executed game that I have been enjoying a lot. Some things abstracted for scale and gameplay but gets a good balance in my opinion, and looks good too and really captures the 1/300 size well. You just know the developers used to play it with Heroics & Ros models. I still have boxes of T80s and Challengers etc in the shed somewhere...
CMBN is more in the 1/72 scale territory obviously, much more attention to realism & detail and specifics. You know the developers would have been playing the games where it would take a few minutes to total up the pluses and minuses for every tank shot and games would often run out of time to play in an evening.. Again, I have boxes and boxes of PzIVs and shermans gathering dust...
I just count my blessings that both games exist and allow us to play out both genres with such ease and recapture the spirit of the tabletop with undreamed-of style and speed. Bravo!