I like the articulation its MU meets JOE, i hope they come out with some ww2 troops or maybe shield agents.

HELL YEAH troops would be cool!

The costume looks cobbled together by a fanboy. If it is WWII, I have no problem with that. But I won't buy it either way.

I'm with you on the not buying it, but yeah it's cobbled together.

The story goes for cap at least: (Highlight to read)

Rogers becomes the super soldier, scientist that did it is killed, US Government can't make another so instead of putting him in the field, they put him in the USO show to his dismay, in a colorful suit to rally the boys.
He abhors this, and wants action, dumps the colorful suit for a more military suit to be out in the field, which he soon discovers the USO suit really did rally the boys, so he cobbles a new suit together combining the two. All of which, iirc is with the round shield.

So his avengers suit may be different since most of the cap movie takes place in WWII. He may get new fighting togs when he joins up with the avengers formally in the avengers flick as even the bits in present day for Cap, may have him still using his old suit, as it's before a new suit can even be designed for him by shield.