Campaign:- very short
Multiplayer:- Feels as if the game is unfinished. Servers are very laggy, crossplay voice chat is broken for most people on console, a lot of the guns are broken, spawn system is terrible, skill based matching is broken (yes it puts you with people on your level but it also puts new players in with skilled players), hit detection is way off, very limited amount of maps, game breaks after every update, scorestreaks should never of been brought back, battlepass needs way to much xp per tier, cosmetic items look cheap, the updates don't seem to change anything, you get dropped into games that are halfway through majority of the time, the list goes on. Only upside is the maps that get brought out are free (however most are going to be from previous cods).
Zombies:- The map that is currently on the game is just and extended version of the original WaW map showing little creativity from the developers, gets boring after 20 rounds, leveling up via zombies takes way to long for both personal and weapons. There's been a few new things added but overall a very poor effort.