I agree, Ground War is pretty much needed for this game as you run around for pretty much the entire match trying to find people. Call of Duty fans enjoyed smaller maps and more action-packed gameplay, for example when Nuketown showed up on black ops 2 it was ALWAYS voted for, or hijacked.
And I would like to say to the people that I know will ignorantly say "CURRENT GEN CAN'T HANDLE 18 PLAYERS!!!" this:
Battlefield 4 has graphics better than ghosts, maps 10 times larger than ghosts, and can still easily handle 24 players. There is no excuse for ghosts not being able to add 3 players to both teams.