Really cool model. Still, it wouldn't hurt putting some more detailing on the railgun and some of the plain faces on it.

The animation looks weird, really... Think his legs are too much apart in the front and the walk-cycle seems to defy physics a bit. I haven't played MGS so I don't know how those chaps move in the game, but if you are to use telescoping/sliding motion on the legs, I think it should be the lower part of the legs telescoping on themselves rather then sliding on the upper thingies.

If you haven't "locked" the model yet, I'd also recomend making the groin a bit wider to make the walk-cycle a bit more realistic. After all.. It's supposed to support ALOT of weight and unless they have invented some super-strong unobtainium alloys it might be a bit flimsy.

Oh and don't get me wrong... I'm really impressed with the design as it is now too and it's way beyond my capabilities (struggeling with making a "working" gyro atm) but my subjective opinion is it could be even better.