I was going to hold off on this one for a bit longer, I've got another secret project in the works but I haven't had a chance to properly test it yet, so I might as well update now before these become
really outdated.
First up, a patch to enable Rare's unused multiplayer setups for Statue and Cradle:

These setups were previously available via GameShark/Action Replay but since Mupen64K doesn't support cheats there's no way to play them online without this patch. I tried to make it as "official" as possible, the maps replace Stack and Basement (Which, for those of you who don't know, are just two extra Library setups that divide the map in half), you need to complete the solo missions before they're available, they fall in the correct order on the selection screen, and are limited to two and three players respectively. They both suck, by the way, which is why they were cut, Statue is nearly unplayable.
DownloadAnd another nearly unplayable one, this time my own creation, a multiplayer setup for Control:

Limited to two players because it lagged terribly with three and crashed with four, this sections off the main control room from the caverns and warehouse areas. It's a fairly small map so it's fun with two players, but it gets very slow in the control room despite many attempts to make it run as smooth as possible. If you don't mind a little slowdown give it a try.
DownloadMany thanks to Wreck for testing both of these online with me and Scorpion for helping test Control with three players.