So let me get this straight Yggralith Zero is also an Ultrafauna, is level 60 and does DoT. I guess I've missed the reward ticket boat as it sounds like it will be harder to get required tickets from compared to Telethia. Though maybe this is balanced by the fact it gives one of the items needed for a certain post game skell?
What's the best way to farm for reward tickets? I think I'm just going straight to the ares-90 but that twins time attack is impossible for me to beat so I'm just gonna farm the tickets.
Scouting 3 characters and maxing their level (scouts have a special EXP meter which is 3 levels) can bring in 3 medals and some tickets depending on their character level (15 tickets if level 60).
Reading up however, you need to use Global Nemesis to really bring the tickets in (so scouting is just for medals to do this with). You do something like break all of its appendages then emergency exit out and then trade appendages for tickets.
In the case of the Telethia you can get 7 appendages per run:
Left Wing / Right Wing, both TWICE
Head
Tail
Lower Body
Where is the best place to get Qmoeva Capacitors in Oblivia?
Other regions have lower leveled enemies that drop those. Check out the spreadsheet in the OP. It also gives some FN sites. You'll have to learn yourself which has best enemy density etc.