Downloading FastDL Content whilst playing // Possible?

[TSRA]

As the title suggests, I'm curious to know if it's possible for users connecting to a server to download files deemed essential, allow them to start getting involved in the game, and during their stay, they'd download the non-essential. Is that possible or am I crazy? I understand the client wouldn't get a texture/model/render update until a map change or similar, but I'm just curious if there is a way or if it's even possible.

[Donkie]

I've seen servers do this, and they're most likely using this: game.MountGMA
Check the example there aswell.