Problem with a global leaderboard

So I’m making a battlegrounds for a genre and I want there to be a global leaderboard with top kills.
But the problem is that the battlegrounds consists of many maps in different Roblox places and the leaderboard is supposed to be in the battlegrounds lobby. Is there a way so all the maps are linked with the lobby’s leaderboards so the kills a player gets in any map are saved in the leaderboard located in the lobby?

Edit: I read a previous post about a similar problem and read that datastores are global

Just close this topic or put in a correct solution in case someone needs the answer later down the road.