[quote]I know the game has a Single Player mode that requires an active connection for the Persistent World[/quote]I believe that's incorrect. Although you can play by yourself, there is no single player mode, and you'll still see other players in the public spaces. Bungie may include a way to remove your game from matchmaking, but I don't believe they've announced anything. [quote]But i really need to know if the single player mode is handled client side, or if the Enemies, Objects, and player movement are handled server side.[/quote]Again, there is no single player mode. As for the networking, Destiny uses a hybrid P2P/client-server architecture that is constantly searching for the configuration that will provide the best experience. You can read more about it [url=http://www.gameinformer.com/b/features/archive/2013/12/06/the-matchmaking-technology-of-destiny.aspx]here[/url].[quote]My internet has a latency of around 1000ms (1k), So unless its all handled client side, I won't be able to play.[/quote]That's pretty big lag... I wouldn't be surprised if it creates some problems in the game, but they may just be confined to the public spaces, where your game intersects with others. Definitely try the beta and see if it's playable. If not, cancel that preorder.