I know what your talking about, it's how people find deleted content. I'm aware none of it is streamed. But often you will find things like placement markers (IE enemy spawns and locations) Are handled server side. So the disk content is essentially the chess pieces and the server is the person placing them. In a game like this where many assets are a few smaller reused items/models you many know WHAT is in the level but not WHERE they are and to see that you need to find a server to properly place everything. Meaning that we are unlikely to get a good look at things till update or release to a point where we can "see" it without getting banned or quickly kicked from that server. It's also how they can quickly change things like spawn speeds and locations without pushing a patch to your device.