- last post: 01.01.0001 12:00 AM PDT
(Spoilers ahead for those who haven't beaten Halo or read First Strike)
I'm assuming Echo 419 exploded in the Maw when we see it fly below the bridge. The Pelican looked in pretty bad shape, and while I don't think you can see it explode, I think it did since the Banshees turn back to get you and leave it alone, like the Pelican isn't a threat anymore. Plus, even if they did survive the crash, the fusion explosion looked to me like it decimated everything, since it had a big enough explosion to bust up the Halo that bad.
In conclusion, while they found a way to bring back Sarge and the Spartans, I doubt Echo 419 and Foehammer will return.