Disharmony of Flame Travel to the quarry in Blackrock Mountain and slay Overmaster Pyron. Return to Thunderheart when you have completed this assignment.
(Dungeon)
60
Alterac Valley Horde Quest
Fallen Sky Lords (Horde) Find out what became of Wing Commander Guse, Wing Commander Jeztor, and Wing Commander Mulverick. Return to Commander Mulfort should you complete your mission.
(PvP)
60
Silithus Alliance & Horde
Into The Maw of Madness - (Step 2) Commander Mar'alith at Cenarion Hold in Silithus wants you to find his beloved Natalia. The information that you gathered points to Hive'Regal in the south as being the area in which you may find Mistress Natalia Mar'alith.
Do not forget to visit the dwarves at Bronzebeard's camp before venturing into the hive. They might have some additional work and advice for you.
And [Name], remember the Commander's words: "Do what you must..."
(Elite)
58
Scholomance Alliance & Horde
Plagued Hatchlings Kill 20 Plagued Hatchlings, then return to Betina Bigglezink at the Light's Hope Chapel.
(Dungeon)
57
Silithus Alliance & Horde
Stepping Up Security - (Step 3) Windcaller Proudhorn at Cenarion Hold in Silithus wants you to slay 20 Dredge Crushers.
60
Alterac Valley Horde Quest
The Graveyards of Alterac Assault a graveyard, then return to Corporal Teeka Bloodsnarl in the Alterac Mountains.
(PvP)
55
Silithus Alliance & Horde
The Spirits of Southwind - (Step 1) Free the spirits of 8 Tortured Druids and 8 Tortured Sentinels in Southwind Village, and then return to Layo Starstrike at the Valor's Rest graveyard of Silithus.
57
Blasted Lands Alliance & Horde
The Stones That Bind Us - (Step 3) Free nine Servants of Razelikh, three Servants of Sevine, three Servants of Allistarj, and three Servants of Grol. Return to the Fallen Hero when your task is complete. You must remain within close proximity of the stones or the process will fail.
58
Eastern Plaguelands Alliance & Horde
When Smokey Sings, I Get Violent Travel to Plaguewood, northwest of Light's Hope. Destroy 8 Scourge Structures by using Smokey's Special Compound at the Mark of Detonation planted inside each building. Smokey has had the Ziggurats and Slaughterhouses marked.
Once you plant the bomb, leave the building and marvel at your handiwork.
By the way, Smokey's Special Compound is rather... unstable.