People seem to spawn around the crater. It's something that Bumblebee has noted and thus he occasionally takes his 'patrol' route around the area. Just in case. Nothing really seems amiss. A little bit of yelling, but that's fairly common too. Confusion... Thinking this is a joke or some kind of illusion... Pretty normal, right? Bee had been through the same thing.

So he waits for whoever is down there to sort themselves out. To see this new one come out of the crater is more beneficial for Bumblebee than them. He has the high ground just in case a Decepticon decides it doesn't like what's going on and wants to lash out at the first thing it sees.

Hearing his name, though? That's a pause and he squints as the red Autobot climbs out.

"I don't think the ones you're looking for are here just yet."