Video Guide: https://www.youtube.com/watch?v=M8iOWPTxanw
1. Warlords of Draenor: The Dark Portal - (Video) - From Stormwind, go to the Mage Quarter, and enter the Mage Tower (entrance @ coords 49.5, 86.7). Click on the Portal to Blasted Lands.
• Once at the Blasted Lands, travel southwest to coords 55.0, 50.3 and click on Archmage Khadgar. Select, "FOR AZEROTH!"
• After the cut-scene, you will be on Alternate-Draenor (where this expansion will be taking place).
• Turn the quest in to Archmage Khadgar (in front of you) at coords 54.6, 48.4, and accept Azeroth's Last Stand.
2. Azeroth's Last Stand - (Video) - Kill one of the [npc=78883] located around the stairs leading up the Dark Portal, and loot the [item=113579].
• Hit 'Complete Quest,' on your sidebar, and accept Onslaught's End from Archmage Khadgar.
3. Onslaught's End - (Video) - Travel down the stairs, and turn left. Enter the structure on your right (entrance @ coords 52.2, 54.6), where a door gets blown up. Click the [object=233057].
• Exit the structure and turn left, continuing onward and entering the structure on your left (entrance @ coords 52.2, 41.9). Click the [object=233056].
• Exit the structure and go back to Archmage Khadgar (@ coords 54.6, 48.4), and turn in the quest. Accept the quest, The Portal's Power.
4. The Portal's Power - (Video) - Travel north and drop down, and go underneath the Dark Portal (entrance @ coords 54.9, 45.4 -- see video if unsure what I mean)
• Go to coords 55.9, 46.5 and click on the [object=229598].
• Go to coords 57.2, 48.2 and click on the [object=229599].
• Go to coords 56.0, 50.1 and click on the [object=229600].
• Turn around and go up the stairs to in front of Gul'dan, and click on the [object=233104], located in front of him on the ground.
• Exit the chamber and go back to Archmage Khadgar, turning in the quest The Portal's Power, and accepting The Cost of War.
5. The Cost of War - (Video) - Travel east and take the stairs, leading down, at coords 58.6, 49.6. Turn right and go inside the building (entrance @ coords 61.2, 54.6) Archmage Khadgar and friends enter.
• Turn in the quest, and pick up the next one, Blaze of Glory.
• Exit the building, and pick up the quests, Vengeance for the Fallen and Bled Dry, from the quest givers in front of you @ coords 62.1, 53.0.
6. Bled Dry - (Video) - Open the Eastern Bleeding Hollow Cage @ coords 65.7, 54.2.
Open the Southern Bleeding Hollow Cage @ coords 61.1, 62.7
7. Blaze of Glory - (Video) - Travel to the following areas to set the nearby Bleeding Hollow Huts on fire (there are three huts in the vicinity of each of the coords):
• 66.3, 55.8
• 63.7, 50.5
• 61.7, 60.7
8. Vengeance for the Fallen - (Video) - While completing the quests, Blaze of Glory and Bled Dry, kill 6 Bleeding Hollow Orcs in the area (usually while completing the other two quests, you will kill at least this number already).
• Travel to coords 71.5, 62.3 and turn in Blaze of Glory and Bled Dry to Archmage Khadgar.
• Turn in Vengeance for the Fallen to Vindicator Maraad.
• Accept the quest Altar Altercation from Archmage Khadgar.
9. Altar Altercation - (Video) - Speak to [npc=78556] @ coords 72.0, 62.2 and select, "Khadgar has asked us to go distract the Eye of Kilrogg."
• Escort Ariok on the northeast path to the Bleeding Altar @ coords 75.9, 52.8.
• Go up the stairs @ coords 78.5, 49.7, and click on the [npc=83670] @ at the top of the Altar.
• Jump down below and click the two [npc=83670] @ coords 78.0, 53.4 and 76.7, 53.8.
• Travel the path to the northwest and cross the Tar'thog Bridge @ coords 72.5, 46.9.
• Turn in the quest, Altar Altercation, to Archmage Khadgar, at coords 71.9, 40.4, and then accept The Kargathar Proving Grounds.
10. The Kargathar Proving Grounds - (Video) - Follow Khadgar, and turn in this quest, picking up A Potential Ally.
11. A Potential Ally - (Video) - Travel northwest to coords 69.1, 33.8 and use [item=110799] ability (your extra action button).
• After Farseer Drek'thar and [npc=79537] are freed, travel the path southeast (where you came) to coords 73.3, 38.7, and turn in the quest A Potential Ally to [npc=79537].
• Speak to Archmage Khadgar and accept the quest, Kill Your Hundred.
12. Kill Your Hundred - (Video) - Follow Khadgar and friends into the Arena.
• You can either stay mounted and run around in a circle, or you can fight the mobs. Either way, Khadgar's friends will combat Kargarth's combatants.
• After 99 combatants are killed, the arena gates will open, and you can follow Khadgar & friends to Umbral Halls. After Khadgar collapses the entrance, turn in the quest to Archmage Khadgar at coords 81.3, 50.3.