While I've never been COD's biggest fan I have bought them all as I find them an easy game to play when time is limited and you just want a game to quickly jump into for 30 minutes.
Having said that this has to be not only the worst COD game to date but one of the worst games to date full stop.
It's virtually unplayable for me;
In multi-player the map takes about 60 seconds to load and the loading icon splutters along in fits and that's with my Steam library on a Samsung 840 Pro.
I've done all I can to remove the W8.1 mouse lag issue but it still persists in game and by the time you've spotted someone and moved the mouse to aim you're long dead.
Awful FPS/Performance - See sig for rig details but I can achieve 80-160 FPS at 1440P in BF4 @ Ultra but I can't get much more than 30-40 FPS in Ghosts?!? It feels, and plays, like you're watching an old 8mm movie which stutters along.
It's too late for me but to anyone considering buying this stay well clear.