Steve assumes, perhaps, that Bruce is more volatile than he actually is. Or maybe he assumes Tony is more determined to draw out his green alter-ego than he actually is. He still thinks this is dangerous. The only thing more dangerous than a shell-shocked super soldier with an exaggerated startle response is a shell-shocked Hulk with an exaggerated startle response. He's been debriefed. He's seen footage. But he doesn't blame Bruce for the being that lives inside him, and he's been perfectly civil thus far.

He goes in a few minutes after Tony, acting like he's simply there to check on their progress. Not like he has any right; he's slightly more closely affiliated with SHIELD, but he's not exactly an agent, and certainly not a commanding officer. Tony would be the only one to question that right now, though, and he's too busy prodding Banner.

Scepter in hand, he's quick to make his way down to the planes. He leaves a few casualties behind, but no one dead or seriously injured, and if the entirety of the helicarrier is now on high alert thanks to his shenanigans, fine. They should be.

Down on the ground, the older Steve has limited means to pay attention to whatever programs and bugs Tony has laid down. He's eyeing the half-dozen vehicles left behind, wondering if they should disable them to make sure they're not followed, when Tony nudges into him.

"Wait, what?" It takes a second for his brain to catch up and remember there's two of him. "Shit. Shit! AWOL how; what's he doing??"

Wow, it isn't until now he fully realized how irritating he can be. Maybe this is a lesson that's been a long time coming.