Cap was ready by the time Tony arrived, sitting up on the roof of his building in full regalia, foot tapping anxiously. He needed to find a way around this flight thing, it was getting to be a serious hindrance. If they were too late there was no way he wouldn't be blaming himself. They need to protect the twins, they had promised, brought them the great hunk of metal in the sky and promised Magneto wouldn't be able to touch them. They were idiots sometimes.