i was looking at epicweapons' stuff then i found a fan website and i signed up and they told me about gametavern on youtube and how he made really good replicas and thats how i found 405th.com
lol
http://www.youtube.com/watch?v=poVyiIw2jTY
(thanks Belakor for fixing the embedded problem[his profile: http://405th.com/forums/index.php?showuser=5261&st=15])
ima try to find a real good working warthog(not the 1 from Halo: Landfall)
i found this in the vid i posted its a brute minor costume body movements controlled by a computer: go to 1:47 to see it
OR
i cut the vid so it only shows that part: