The connection issues in Black Ops 2 were a complete anomaly compared to past Treyarch releases, all of which had superb netcoding and superior spawn systems. I was baffled how they allowed the BO2 netcode past testing, still am... the game itself still runs smoother and just feels of higher quality than any previous title, it was just plagued with stupid issues that in no way should have made it out of testing.. shows you the limits of a two year development phase. They damn near perfected their engine and presentation and apparently ran out of time with their servers and netcoding and such.
When you're under a two year cycle and you want to perfect something you've been working with for years, something's going to get sacrificed >.< Glad they're up to a three year cycle now, extra time can only produce a better product... which unfortunately we'll have to wait for since it only just started and Sledgehammer's been working on IW CoD titles since MW3, on top of their own.. Advanced Warfare is likely to be a patched up Frankenstein's monster.. yeah, they've had three years to work on it in blanket terms, but in actual development time, if you chop out MW3 and Ghosts development, it'd be closer to about 19 months worth.. which is why I'm not in any way expecting much out of it come November... lol