Howdy, folks. This topic is for mods and custom campaigns like Starcraft 1 and such. It is a place to put those kinds of things here.
A perfect example: http://www.staredit.net/topic/17396/
That's a collection of custom campaigns (And some contains custom units and such, which can also be somewhat of a modded custom campaign. Like going through an .exe file that has the modded units/music and such.)