So...Seems like after 738 hours of playing I decided to write a review.
Campaign: This is the most dissapointing thing in this game.I have no idea how they could make such a boring campaign after the masterpiece they created in Black Ops 2.There is no relation to the previous games,all you do is just shooting robots and some people(some of them are just a simulation :D).To be honest,it was a real problem for me to even start playing,as I don't enjoy it at all.
My rating: 3/10
Multiplayer: Can't say I'm as excited as I was when Blops 2 came out,but this game was waay more interesting to play after the Call of Duty fails (Ghosts,Advanced Warfare).I personally liked the multiplayer,the whole specialist system,the camos and,especially,the melee weapons(It really is fun to play w/ them when you get them).Supply drops..Not really a problem for me,even though I don't buy CoD Points,I got quite some interesting stuff(MX Garand,Wrench,Slash n Burn,Skull Splitter and the Butterfly knife).I don't really like most of the maps,but this is just my personal preference.
My rating: 8/10
Zombies: This is probably the reason I bought this game+ the Season Pass.So,first of all,I like the fact that it's boots on the ground,no jumping up and down like it was in Exo zombies (which was awful).I really liked the new system,the weapon kits allow you to use your multiplayer/campaign camouflages and use them in game.Also,you can rank up your weapons and use the attachments you want,you can rank up normally in zombies and become a prestige master (and i really liked that,that makes you want to play more and more).The whole Gobblegum system was pretty nice,sure,if you don't spend a lot of money,you won't use perkaholics every single game,but,for a regular zombies player,the gums are a real nice addition to the gamemode.
About the maps..
Shadows of evil was a great map(it reminds me of a mix of Biochock and Mob of the Dead),spent a lot of hours playing it and I would say that really enjoyed it.
The Giant A nice remake to play with your friends.I like it more than the original.
Der Eisendrache is the map I dislike.It is similar with Origins but it doesn't feel as good as Origins is.There's something about it that makes me avoid it.
Zetsubou No Shima is my favourite one.I spent most of my time playing,going for high rounds,easter egg stuff etc.Very great one
Gorod Krovi is not a map I would play regurarly.This map barely reminds something related to the USSR.all you see is a bunch of Silver Crosses,no Hammers & sickles or Soviet flags.More like you play in another German city.There's not much room to run around,the design of the map is bad and even the PPSH can't make me play the map more often.
Revelations The whole idea of uniting maps from previous titles was something I wanted for quite a lot of time and it brings a great feeling of nostalgia,but I think this is not the end we all wanted.The map is fairly easy (all wonder weapons are available from the box,there're a lot of interesting things in it but it's not something that will make you play this map over and over again.

I completed all of the easter eggs and I really enjoyed doing them,the storyline is just amazing,but the end was a little bit..unexpectable.

My rating: 9/10

Dead Ops arcade was interesting to play,Free run is a fun way to spend....some minutes,Nightmares is so so.

Game rating: 8/10

2021 update:
After 1800+ of playing, I can say that the game is still my favourite game, as everything that made it great is still in the game. The biggest downside is the fact that the game is infested with cheaters and people with hacked levels, which makes me, a legit Prestige Master extremely frustrated. It is impossible to play multiplayer normally, and there is only one playlist that people play- Team deathmatch. Zombies is preferable to play with your friends because it has been ruined by cheaters as well. Sad to see what happened to this once magestic game.

So...Seems like after 738 hours of playing I decided to write a review. [b]Campaign:[/b] This is the most dissapointing thing in this game.I have no idea how they could make such a boring campaign after the masterpiece they created in Black Ops 2.There is no relation to the previous games,all you do is just shooting robots and some people(some of them are just a simulation :D).To be honest,it was a real problem for me to even start playing,as I don't enjoy it at all. [i]My rating: 3/10[/i] [b]Multiplayer:[/b] Can't say I'm as excited as I was when Blops 2 came out,but this game was waay more interesting to play after the Call of Duty fails (Ghosts,Advanced Warfare).I personally liked the multiplayer,the whole specialist system,the camos and,especially,the melee weapons(It really is fun to play w/ them when you get them).Supply drops..Not really a problem for me,even though I don't buy CoD Points,I got quite some interesting stuff(MX Garand,Wrench,Slash n Burn,Skull Splitter and the Butterfly knife).I don't really like most of the maps,but this is just my personal preference. [i]My rating: 8/10[/i] [b]Zombies:[/b] This is probably the reason I bought this game+ the Season Pass.So,first of all,I like the fact that it's boots on the ground,no jumping up and down like it was in Exo zombies (which was awful).I really liked the new system,the weapon kits allow you to use your multiplayer/campaign camouflages and use them in game.Also,you can rank up your weapons and use the attachments you want,you can rank up normally in zombies and become a prestige master (and i really liked that,that makes you want to play more and more).The whole Gobblegum system was pretty nice,sure,if you don't spend a lot of money,you won't use perkaholics every single game,but,for a regular zombies player,the gums are a real nice addition to the gamemode. About the maps.. [u]Shadows of evil[/u] was a great map(it reminds me of a mix of Biochock and Mob of the Dead),spent a lot of hours playing it and I would say that really enjoyed it. [u]The Giant[/u] A nice remake to play with your friends.I like it more than the original. [u]Der Eisendrache[/u] is the map I dislike.It is similar with Origins but it doesn't feel as good as Origins is.There's something about it that makes me avoid it. [u]Zetsubou No Shima[/u] is my favourite one.I spent most of my time playing,going for high rounds,easter egg stuff etc.Very great one [u]Gorod Krovi[/u] is not a map I would play regurarly.This map barely reminds something related to the USSR.all you see is a bunch of Silver Crosses,no Hammers & sickles or Soviet flags.More like you play in another German city.There's not much room to run around,the design of the map is bad and even the PPSH can't make me play the map more often. [u]Revelations[/u] The whole idea of uniting maps from previous titles was something I wanted for quite a lot of time and it brings a great feeling of nostalgia,but I think this is not the end we all wanted.The map is fairly easy (all wonder weapons are available from the box,there're a lot of interesting things in it but it's not something that will make you play this map over and over again. I completed all of the easter eggs and I really enjoyed doing them,the storyline is just amazing,but the end was a little bit..unexpectable. [i]My rating: 9/10[/i] Dead Ops arcade was interesting to play,Free run is a fun way to spend....some minutes,Nightmares is so so. [b]Game rating: 8/10[/b] [i]2021 update:[/i] After 1800+ of playing, I can say that the game is still my favourite game, as everything that made it great is still in the game. The biggest downside is the fact that the game is infested with cheaters and people with hacked levels, which makes me, a [u]legit[/u] Prestige Master extremely frustrated. It is impossible to play multiplayer normally, and there is only one playlist that people play- Team deathmatch. Zombies is preferable to play with your friends because it has been ruined by cheaters as well. Sad to see what happened to this once magestic game.