[rah_pillage]

Yes. Join a multiplayer game that advertises Typhon run for normal difficulty. Join the game, then ask someone to drop a portal enter a standard portal or drop your own portal and you'll see a link to Mount Olympus do the Typhon run and when Typhon dies, don't worry about the loot. Jump through the portal that opens to the north to make sure it registers that you have completed that difficulty.

Rinse and repeat for Epic difficulty. In about 15-20 minutes you should have all difficulty levels open.