Call of Duty should never have big maps. The whole premise of CoD is to run and gun in the map and Ghost fixed something that wasn't broken. The maps encourages more players to play as snipers making it hard to find anyone to kill in the game. The only time I perform well in the game is in small maps where I can learn the whole map. The whole killstreak is a terrible idea as it's focus are more ground focus than air. A UAV, airstrike and hunter killer drones would have been a much better fit for this game.
The only good point about this game is that I can unlock weapons without leveling up but I prefer to get my attachments by learning and using the guns.