Single player is very good, but multiplayer is poor.
We play it as a group but it is full of bugs and glitches.
Mainly that when we go in as 4 or more we get some weird last disadvantage making it almost unplayable. You shoot someone but they kill you, you watch the replay and it shows you never shot them.
The game crashes in multiplayer and zombies at times and the disconnects in zombies is terrible.
The game uses an old engine and that was a poor decision. The game was rushed out and we've basically paid money for an alpha version. Even the multilayer lobby is awful and buggy.
Activision should be ashamed of themselves, clearly just money grabbing.