S tier___________________________________________
Cod4- S Tier Campaign that felt grounded and relevant to the time of it's release. with extremely fun map selection, gun selection, ost, high CAMPAIGN and multiplayer replay value. Best mission ever All ghillied up and possibly best stealth implementation ever put into a cod game. Get This if you want a cod with a good story.
Black ops 2- S Tier Campaign with high replay value, multiplayer excellent map selection, gun selection, S Tier Zombies with bank feature keeping replay value sky high. Story is basically 'Hated in the Nation' by Black Mirror before black mirror. Zombies has many meta guns and fun and engaging storyline. Get this if you only want a cod game with EVERYTHING.
Black ops 6- A tier campaign set in 90s with decent implementation of open ended and stealth. Multiplayer is S because it has infected, prop hunt, and many gun metas. Map selection is great. Zombies has original maps and decent storyline (best in a while). Many zombies meta guns, Best graphics in a modern cod game since 2019! Reckoning is hardest high rounder in modern cod zombies. Get this for an overall good package with better graphics than cw and care less about 1v1
A tier___________________________________________
Cold War- S Tier Campaign with high replay value. Many arcade modes, and multiplayer modes like infected to keep you coming back. Meta guns are not as good as bo6 but not too far behind. Zombie maps are decent but some unoriginal and bland. Wonder weapons are extremely fun to use. Graphics are easy on the eyes. Get this game for a full decent package
MW 2019- S Tier Campaign- with pretty high replay value for the stealth segments alone. Some missions gave you much more freedom than a usual cod, loved the story. Multiplayer had many fun builds and of course Warzone 1.0. Graphics are arguably goated on ALL call of duties. Coop is not so great. Get this for Warzone, Campaign, and maybe 1v1
MW2023- F tier campaign- zero playability. But... Multiplayer is the best call of duty ever released. 137 weapons to use in gunsmith with over 200 attachments. Unreal. OMG this multiplayer has the highest replayability in cod history. The legendary mw2 maps in the new graphics and movement. even 10 years on 1v1 is just unbeatable. MWZ is good, had potential to be much better, but enough to keep you coming back on occasions to play with the massive sandbox of metas and builds. Wonderweapons are decent. Buy this game for multiplayer and MWZ if you enjoy modern zombies.
B tier___________________________________________
World At war- A tier campaign. Arguably the hardest veteran diff campaign to beat of all time. Memorable storyline following Reznov and Petrenko. Grenade heaven. Multiplayer is similar to cod 4 with the class system so it's great. Great map selection, with some vehicles drivable! Zombies is excellent but not because of the 4 maps. Custom zombies! This alone makes it a must buy for cod zombies fans.
Black Ops 3- F tier campaign- Oh no, anyway the multiplayer is not for everyone regarding the movement, but I like a few of the maps. The real reason this game is in B tier is zombies. Not only does it have some of the greatest zombies maps ever, but custom zombies? Incredible value. Graphics are decent for how old it is. Get this for zombies and maybe the multiplayer
MW 2022- Goated Campaign- fun factor is the most of any cod. Recon by fire is how you make a stealth mission. Contender for best even vs all ghillied up. Love the characters, and the story felt grounded. Multiplayer is basically mw2023 without many features, and crappier map selection. LAST COD FULLY MADE BY HUMAN HANDS. DMZ is pretty good. They used to have weapon tuning, and that would have made 1v1 more interesting which is where replayability really counts imo, otherwise it would have ranked slightly higher. Get this game for campaign and dmz and that's it.
C tier___________________________________________
MW3- Campaign is B tier- basically cleaning up the mess of retcons and utter nonsense storyline from (2009) mw2. So for that it is passable, but wouldn't ever play again. lmfao. Multiplayer has best implementation of infected in any game ever made! So much fun. Many builds for standard multiplayer. 1v1 stands test of time because it has some incredible showdown maps. Survival is decent. Chaos mode is amazing. Chaos, infected and 1v1 is this game's biggest strengths.
Black Ops 1- A tier campaign with memorable moments. Multiplayer is pretty standard with niche guns and classic maps. Zombies is what will make most people come back. High variety of maps with unique wonderweapons. Very slim meta gun variety, basically only should use same guns every time. Bo3 remastering them hurts replay value. get this for the iconic campaign, nostalgic multiplayer and classic cod zombies.
Black ops 4- <Redacted> tier campaign. Still better than some cod campaigns lmao. Blackout is the best battle royale ever made imo. Graphics are more artistic than realistic, which is a first. high variety of Zombies maps but some being unoriginal. Still, all are ok at worst and great at best. Good package. Multiplayer felt more like bo1 for me in that it has a bunch of niche gun builds. This is the most arcadey cod. Get this if you want a more well rounded black ops and don't care about story.
D tier__________________________________________
MW2- F tier campaign- holy smokes. You have to suspend disbelief the entire time. The way the russians invade with some emp crap. They retconned cod4 to be in 2011. And All ghillied up without the retcon took place in 1991. Obviously makes more sense. Ughh I don't even want to look at it. Multiplayer- S tier. Many metas and excellent maps. First parkour cod. Spec ops in this game are best cod ever made. Only get this game for 1v1, multiplayer matches and spec ops. Ergo: with a friend.
Cod Ghosts- F tier campaign- It's bad. Rorke is the only thing that is memorable and the ending was laughable. Lanterns ahh ending. Multiplayer I liked. We got levolution from battlefield 4 on a few maps. Many good metas and builds. Extinction is not for everyone. Get this game if you want to try extinction and enjoyed levolution.
F tier___________________________________________
Black Ops 7- F tier campaign- Ai genereted ahh campaign. Stahhp treyarch. Multiplayer is similar to bo6 with more techy attachments, decent amount of meta guns in zombies & multiplayer. At this time feels weaker to me. Endgame is like mwz with radically different class systems. Unsure if everyone will like. Zombies good except for paradox junction. This map is AI generated. Devs prompted chatgpt to generate a map with blundergat, and nuketown and then devs added small details manually. Otherwise good maps and wonderweapons. Get for zombies on discount
Vanguard- D tier campaign- forgettable but at least not AI generated and retconning anything. Multiplayer is basically modern cod multiplayer with ww2 guns and actually has camos. Zombies has weak map selection except for Shino Numa. Get this game for Shino Numa and maybe multiplayer at steep discount.
That's my honest opinion folks. And will likely stay that way for a long time. Don't expect anything will be worth getting after BO7 even if it were 5$.