Just in case you don't know what RawFileManager is, it allows you to load GSC on BO1 Zombies & Multiplayer.
This is the real source, he told me a while ago that in the current state it was in it was broken, but shouldn't be a problem for some people.
It even has MW2's TU6 method for loading gsc's/rawfiles, so just update the offsets to TU8
P.S Staff: I was not to sure where to post tool/plugin/server/any sources for jtag/rgh. So if there is another section you'd rather it be in then by all means do it! Thanks