I picked up Barricade at Wal-Mart last night and after I transformed him I was left wondering why the pieces along the top of his shoulders have a ball joint but it doesn't show anything being done with them in the instructions. I looked on Seibertron's galleries and he's got them just how they are on the box, then I looked at the full CGI pic and I realized there's actually an unlisted step in the transformation sequence.
This is how the instructions show it:

Look at the render:

You can clearly see the tire is on the inside and the little hook piece at the very top of the shoulder is pointing downward.
This is how his shoulders are supposed to look:

I like this look a lot better, now his arms don't look like one giant slab.