Wow !! Quite impressive looking !
It's a Warhound! :D
Actually it looks more like a giant mechanical Brian out of Family Guy
It could be used as a warhound titan for epic...I might get some then!
It does look rather like the older Warhound design...I'm thinking of grabbing a bunch of the smaller walkers along with a couple of these to bulk out the armoured support for my UNSC...