Not exactly NS1 and has no relation to NS2 Classic.

This pack contains mods that I created and some other people's stuff that sort of represent NS1's gameplay style. Just look at the contents, they are pretty self explainatory...

This is more of a server hoster's pack rather than a player's pack to subscribe to as these packs can only be run if the server has them or allows for these mod types to run. I don't recommend running the physics mods though on a server that doesn't use them but allows lua mod files...