Godzilla Open World Game Idea

This is my idea for a open world Godzilla game, the ultimate Godzilla game. As the title says; this is an open world game with Godzilla! The way you would play is in 3 modes. Singleplayer, Multiplayer, and Campaign. To start the most important feature will be the map. The map will be the entire Pacific Ocean! You can visit Japan, any coast city in Asia, America, South America, and any islands like Hawaii, Galapago, and others. In singleplayer mode you play as any monster you want and you can wander the Pacific and fight monsters that are spawned in throughout the map. In Campaign mode you play as Godzilla and you play through the Godzilla trilogy. Other stories could include, the mellenium series movies, (each movie being seperat parts of the campaign) the Heisi era, and the Showa era. The last mode is multiplayer. With a gigantic map; why shouldn't there be a multiplayer mode? Your goal is to be a monster that isn't already in the game and will place ou in a area that represents the monster (Rodan in Japan, Mothra on her island, and etc.) and you are free to wander the world fighting other players. You will have a map and can see where players are but you won't know which monster they are. You could be a MUTO and be chasing someone and fing out you would be fighting King Ghidorah. Some monsters would be landlocked but other monsters would be landlocked on the same continent so you could fight them and any other monster that comes to you.

This is my idea for a open-world Godzilla game! Feel free to elaborate and/or critisize.