Typically, Steve never asked for help our backup, which would clue Natasha in to the seriousness of their situation. She might even have some insight with what hydra wanted because shield sure never explained anything they didn't have to. It frustrated Steve because how could they properly do their jobs without as much information as possible?

Settled into place, Steve tried to not move much and topple to the ground. "She'll laugh but the worry will overtake it. We'll need someone to get the suit as quickly as possible." Yes, he cared more about that then whatever happened to him. It just didn't concern him much because he always anticipated the serum could handle anything. Eventually, he would be fine.

When they reached the hideout area for Tony, Steve looked around for things to bundle him up in. "You'll have to shift back before our reinforcements come."