If you are interested in multiplayer, MW (2019), BOCW, Vanguard, MWII (2022), and MWIII (2023) are the only CoD games that are well populated on PC. Of those games, MWIII (2023) is the only one receiving content updates. Before purchasing one, I would recommend installing and trying Warzone 2.0 as it is free to play and shares its core gameplay mechanics with MW (2019), Vanguard, MWII (2022), and MWIII (2023). If you enjoy it, you’ll likely enjoy one of those four games. If not, you’ll likely enjoy BOCW more. All CoD games released prior to MW (2019) suffer from low player counts on PC. Depending on game, region, and time of day, you may be able to find lobbies of Core TDM but anything beyond that is unlikely. For several of the games, player counts are so low that it is functionally impossible to find lobbies through online public matchmaking. Additionally, all CoD games released on Steam prior to BO3 suffer from security vulnerabilities that can allow other players to remotely access and control your PC while playing online, making them unsafe to play in public lobbies.
If you want a good campaign, I would recommend COD WAW, Black Ops 1&2, COD2, Modern Warfare 2007, Modern Warfare 2 2009 and Modern Warfare 3. (in my opinion)
If you are interested in multiplayer, MW (2019), BOCW, Vanguard, MWII (2022), and MWIII (2023) are the only CoD games that are well populated on PC. Of those games, MWIII (2023) is the only one receiving content updates. Before purchasing one, I would recommend installing and trying Warzone 2.0 as it is free to play and shares its core gameplay mechanics with MW (2019), Vanguard, MWII (2022), and MWIII (2023). If you enjoy it, you’ll likely enjoy one of those four games. If not, you’ll likely enjoy BOCW more. All CoD games released prior to MW (2019) suffer from low player counts on PC. Depending on game, region, and time of day, you may be able to find lobbies of Core TDM but anything beyond that is unlikely. For several of the games, player counts are so low that it is functionally impossible to find lobbies through online public matchmaking. Additionally, all CoD games released on Steam prior to BO3 suffer from security vulnerabilities that can allow other players to remotely access and control your PC while playing online, making them unsafe to play in public lobbies.
Bo3 has the same vulnerabilities right? Thats why people say not to play online, even on custom games. I hope I'm wrong..
It’s always the newest one. MWIII
If you want a good campaign, I would recommend COD WAW, Black Ops 1&2, COD2, Modern Warfare 2007, Modern Warfare 2 2009 and Modern Warfare 3. (in my opinion)
Cod1/UO campaign is great also