That's definitely something that went with the GI Joe line, they may have come with SW weapons in them at times, but the military stylings of it are more consistent with Joe than SW. Not saying that I wouldn't want one if it came up, but the SW weapons packs came more like this:
http://www.flickr.com/photos/coffin_joe/1488494670/in/set-72157602273794507
http://www.flickr.com/photos/coffin_joe/1488494736/in/set-72157602273794507/
also the colored weapons that he shows lower on the same page are 1st gen weapons not 2nd or 3rd.
Cheers
J