M6*: Missing Advanced: Resplendent Silver (Malzeno in the Lava Caverns) and Advanced: Edge of Madness (Malzeno, Lunagaron, and Shogun Ceanataur in the Arena).

Also missing MR5 quest Storm of the Kushala Daora (Kushala Daora in the Citadel).
Also clarification from previous post: the HR7 hub quest for Teostra is called The Emperor of Flame, the MR5 one (Teostra in the Lava Caverns) is called Emperor of Flame.

Missing a couple apex hunts from HR 7 under Death From Above and above Master Utsushi's challenges
The Avaricious Apex Arzuros
The Graceful Apex Rathian
The Harlequin Apex Mizutsune
Each unlocked by killing the respective monster in Rampage

Star At World's End (MR6) has been listed twice for some reason.