Meanwhile, on Pandora, the Vault Hunters find an old Russian space shuttle.

Just kidding.

... and now we've begun to venture back into the wild...

Human technology certainly seems to be more primitive here than in Halo, probably not due only to the unknown cause of destruction, but just a generally earlier level of development, hence the lack of FTL.

Bungie's description of Destiny as "mythic sci-fi", the "magical" powers of the Warlock class, and other small touches may indicate than rather than trying to do something radically different from either Halo or Myth, Bungie is seeking to make a hybrid of each.