Ultimately forcing people to walk around slowly and act like real soldiers doesn't make the game better -- it's simply an artificial "change" that doesn't address the main problem. If a game rewards run and gun gameplay, then that's what people will use. This is magnified by the fact that there is a rewards system in place (unlocks, etc) that rewards points over teamwork. Thus, people will naturally take the path of least resistance, and they can't be blamed for that. After all, the majority of people playing RO2 right now on servers seem to be perfectly OK with that fact.
Ultimately, the only people who have the power to truly change how the game plays are the developers. And I have yet to see any solid evidence that dramatic gameplay changes are coming, other than some very general mentions here and there in bi-weekly "updates." This is the main reason I don't really play the game anymore, along with most of my RO1-loyal friends and much of the original community.
I'll pay attention once I see real change. Until then, I'll be spending my time with other games and watching these forums to see if the devs prove me wrong. Which would be fantastic, as much as I find it unlikely.