The one feature I do wish they actually copied from CoD is the ability to speak around corners and take cover and mount weapons on things really easily. It feels strange now not being able to do it.
Personally, I love the hero system in 2042. Simply because your whole squad can be of one type, and then also sub specialise. E.g. you can have a tank killer squad, or a flanking squad, but everyone still has their own different input into the squad.
Also people totally over react on the negativity, granted bugs are a plenty, but the gameplay itself is totally fine. Miss the destruction we had in Bad Company 2 though.
"Money doesn't exist in the 24th century, the acquisition of wealth is no longer the driving force in our lives. We work to better ourselves and the rest of humanity." - Jean-Luc Picard