I got this game last night, it hasn't hooked me like I thought it would.
I'm just having quick sessions here and there, the cover system I'm not sure about...right now I don't use it and just hide behind cover "the old fashioned method".
Best map is definetely grain elevator, by some margin actually. Had a go on a tank only server and that seemed quite fun might play that some more.
The best thing about the game is the satisfaction of lining up a kill with one of the rifles then nailing it.
Same thing that was best about ro1, so it definitely succeeds as being what you'd expect from the game imo.