A gun bunker for either GDI or Nod, or both. The turret voxel comes from (I think) Big Jah's Blister Tank, and I take no credit for it whatsoever. The rest was custom made by myself. As you can see, the bunker's base is a shifted version of the GDI barracks, and the build-up I made is my first ever, so please pardon the crudeness.
Note: as always, this site is refusing to allow me to post a screenshot .gif file. I have included one in the zip however, and would be grateful if someone could post the screenshot after having downloaded the zip file.
Screenshot added from where somone posted back in origional thread - Creagor

Fluent in |3375p3k, 68 65 78 65 64 65 63 69 6d 61 6c, ebg13, -- --- .-. ... . -.-. --- -.. . --..-- and 01100010 01101001 01101110 01100001 01110010 0111100100101110
(Whoever translates that gets nothing, just +1 on thier geek score)