Though sounds need improvement, thats an aspect where FH2 lacks big time when compared to other things. Also third person animation could need some work for some guns like Germans MG:s and rocket AT weapons.
About FH gameplay I would like tanks to have more hitpoints, kinda like in FH1. Especially after WOT it feels so odd to tank in FH2 when I just get oneshotted by Cromwell in Panther when he grazed my side track wheel.