There is a Liberty City mod on 5-mods that's an add-on. That's the one he's using. - https://www.gta5-mod...ps/liberty-city
Can't help but notice that there's some traffic there (or spawned through a trainer?)
Also, not sure if your mod somehow crashes after the latest patch or I somehow f*cked up the nb rpf
Oh, sorry for the late answer. Yeah i used this GTA LC Map mod which ports Broker to GTA V but it's missing a lot of props and also traffic, this is why is used Scene Director to recorded actors that act like peds.