I really think they should bump lobby sizes for this game to a standard of 8 or 9. I think that would bring the game to a nice balance between camping and running as you'll have more people keeping the tempo up.
Spawns I think are more influenced by the fact that maps are so vastly different. The setup of the maps don't support the spawn logic which was added to the game. I haven't ran into massive issues but I can deffinitely see issues.
This game, I think, is much better connection wise. Haven't had any issues with lag and because of that I'm having way more fun. With some tweaks I can see Ghosts being much better.