No MIL lilly's drop Aura Field in temple not Ob lilly's, at least not for Oran. Ob's definitely drop Sense Plate. I know cause I picked up 6 Aura's from Mil's in Temple.
And as far as I know Lavis Cannon drops for all ID's. I've picked one up for Oran, Redria and Yellowboze from the same enemy, area and difficulty. Not tryin to be rude, just sayin from personal experience. :/
Also you are right Mil lillies drop Sense plate in Oran ULT caves as well.