I have been playing for a few days and I've noticed that when you die majority of the time you will spawn in front of the enemy and die in a split second or an enemy will spawn behind you and die. I will not play this game until this is fixed.
The only maps I run and gun on right now are Strikezone and Freight. And I was a run and gunner almost exclusively on BO2. Between the corner camping (due at least in part to the large maps) and the screwed up spawns (I get spawn killed at least once every game it seems) it is a death sentence to run and gun on most maps.