It's been a while, but I made this with about 3-4 hours of work.

(Lol photoshopz)
I know I have made a Dreadnaught before, but this one is WAY closer to the original than my previous one, and it just kinda looks better.
I would say you could buy it, but you could only order it from LEGO.com for $341.31. I can give you a link if you want. :P
It does have some downsides:
-Some sizes are off, I know, but I can't get it perfect. It takes long enough to make everything move.
-The 2 large faces that are solid gray were meant to be red, but the brick I used there didn't have the color red, and it was the only one I could use.
-A lot of the wiring that would have been there, is not there, since there aren't many wires in Lego Digital Designer.
-The Gaps in between the body's main 3 sections aren't really there, but it's enough to know what it is.
Yay, Features:
- Ball-socket joints on feet and legs.
- Each "toe" can be moved up and down
- Body rotates on top of the 'hips'.
- Each "arm" rotates up and down.
- Missiles on missile pod do come out.
- The gun can spin.
- The bullets that are under the gun can bend.
- The center plate can be taken off, and put back on easily to reveal insides, which is just a small compartment.
EDIT:
New update. Made the middle taller, and the hip pivot point slightly taller to be more faithful to the original model.
