Iron Man came to the party with weapons for everyone, which is The Mighty teaser we had seen. He actually makes it a point to say that he didn’t make one for Captain America because his shield is unstoppable, but hey, he was with dwarves and missed the shield getting shattered. So it’s more assault rifle Cap.
Until something crashes into the ground, and then Steve gets the biggest weapon that he could possibly be worthy of wielding.
Captain America. With the hammer of Thor. Awesome? Little bit.