While I think the OP is over reacting a bit I believe that there are issues with game play. Yes we have always had HOin, and hordes, back then they called them MOMs or "Multi Squad Ops". The would "advertize" them all week and put them together on the weekends.
The problem is that this isn't just happening now and then any more, it's becoming the norm. Old days only rookies went for the HO, now almost everyone does. Like The NOEs they are becoming the norm. I can post another Bish mission picture with 20-30 guys running NOE with 4 of us upping to try and stop them, and you know how that went
Sure I got 6-7 kills to my 3 deaths big deal, I didn't fight anyone, just kept blasting through firing my guns until I lost a wing and would reup.
Ever notice how the number of NOEs increase when the is an "island" type map up? I think if they got rid of the maps with water half the Bish would cancel their subscriptions. No water means they need skill to fly NOE over the ground, and they haven't any.
Yes you can still find fights, or any type of play you want in the arenas, but you have to work at it these days. And from the looks of things it's only going to get worst. The one plus I see is when WoP comes out a lot of the "kiddies" will go there and play for free. Maybe then the arenas will get back to "battling" instead of just trying to roll bases.