I'm still trying to figure out what the thinking was on that - I liked the big city with all the strats as it made big buff missions fun thing to do on squad nites.
That's what I miss most on a personal level - large, escorted, high altitude bomber missions.
What the big city strat complex lacked was any real ack protection - same thing we get with the CV group. A single box of bombers flying into a well defended strategic target should be blown out of the sky at least 50% of the time. especially if you are coming in low. As it is now all you get is a couple of pings and you fly away and get your paint touched up.
The old central strats (and the leftover City) even still was quite well defended by ack VS noe raiders. Today's single factories have just a few light ack guns left, and not even a single puffy ack at all.
Puffy ack over the City/central strat was also nice, but (like CV puffy as well) suffered from the fact that puffy can & will hit the lead bomber only:
From Sep 12 to Dec 13 I did 549 attack runs on the Central Strats losing 51 bombers to puffy and got various degrees of damage on maybe twice as many. But not even once a drone was visibly hurt by puffy, no *boom*, no smoking engines, no fuel leaks, nada.
No wonder puffy doesn't do much against bombers when 2 of 3 planes in a formation are invulnerable to it.