I do believe that his torso is protected by plate armor, hence the straps on his back, but that it was painted or some cloth was attached to it.

The term 2handed probably refers to the first unit shown, the Zweihander

If that is a longsword, then a dagger would be the seize of a small Swiss armyknife. I understand that CA can't make every unit perfect or even decent in such a large game but they should make that effort for the once they display. Those are the things that should sell the game and it makes me fear for the quality of the other units that we won't see.
I don't want to be bashing CA but I was always thaught to deliver decent things if it is meant for display.