Speaking for myself, I doubt I would stand a chance against most of you, given the hours you put in! Personally I've always played the game with Assaults and Engineers the way they are, so I'm used to it - a good Assault or Engineer should be able to own in the situations those classes are suited to, the game is designed that way...
Fortunately most people you meet on public servers aren't as good as that. Surely you guys are good enough to deal with most Assaults and Engineers anyway, right?
I really miss rockets in the majority of servers that apparently have them turned off these days - it's not quite Killzone for me without rockets whizzing past your ears...
What I do prefer, however, is to play 16 player games rather than the full 32, which personally I find is too many for most of the maps. 32 can be fun but gets tiring very quickly imho.