Shadowcat, Peregrine, and two med techs - Suzuki and de la Cruz - head out of the portal; he directs them, as fast as he safely can, toward the nearest injured person.

"Hey! Over here! Help!"

He and Peregrine are directed into position, to shift the rubble off the stranger's legs; de la Cruz and Suzuki get ready to move them.  On three - 

Their rescuee cringes slightly in anticipation, and—

—well. It's not as bad as it could have been. All the bits are still attached and in roughly the correct places. Modern medicine can probably treat this, unless it's worse than it looks, which to be fair it might be; not all injuries are obvious at a glance.

The fact that it's a fairly optimistic picture does not stop the injured party from venting a shocked, breathless sob and then passing out.

All right.  She and Suzuki will start treating this person for shock.  She sends Shadowcat back to the portal for med tech reinforcements and Peregrine to check out that relatively unwrecked med van, maybe teleport in and out with some blue gloves and N95s.

Okay.  Let's find the next nearest person that he and the other two med techs can get out from under the rubble, or otherwise get to relative safety, on their own.

There's no shortage of people trapped in the rubble, some in better condition than the first one, some worse. Many of them are relatively straightforward to get free, though sometimes they need a bit of calming down first so they don't hurt themselves further.

Shadowcat's most important contribution to most of them is brute strength; an esper is valuable for shifting chunks of wrecked macadam.  Occasionally, he can lay his hand on an injured leg or arm, gently enough to not damage it further, but firmly enough to be The Cause of the pain, and flick on his power to render his touch, and the pain it causes, more easily ignorable, for a moment.