You're referring to the FB shutdown? No, it didn't affect me as I was at work during the entire time.
So I finally have a setup to solo LGD with all bonus characters + 1 OK. What worked for me was equipping 2 characters with wind weapons (air knife, wing edges etc) + Pod, your weakest one with Siren (for attack song).
You can do whatever you want with the last character, although a wind attack is helpful. You don't need to enhance any of the characters as long as you have enough MP for the Pod Mirage.
It's simple from there: The weakest one with Siren always sings. First battle you bliz OK because there are 2 enemies. After that, it's just Splend Wind chaining all the way to the boss. You probably won't 1TKO him, but should knock him down to >30%. Sp.Wind makes his quake do almost nothing (will wipe the rest of your party), and by then you'll have OK LB ready to finish him off. 1 have 2 Doga/2 Bird Ladies, so depending on whether I have a 7* friend it's either a 350% or 450% bonus, which is about 10K per run, and a crazy 31K if you get death claws!