https://www.youtube.com/watch?v=i-WXODuSEyM
http://www.icy-veins.com/wow/hellfire-assault-strategy-guide-normal-heroic
We'll hero on the pull and burn Mar'tak. We'll all be standing near Mar'tak to dodge the cone attack, even ranged. Ranged players can swap to the higher priority adds but we'll try keeping melee on Mar'tak until she dies or if we can stack the adds with her that will work nicely. Ranged kicks for adds may be very important here.
- When siege vehicles die ammo drops and must be brought to the friendly cannon. (This is how we win fight)
- Felcasters cast volly, Engineers cast repair. These must be kicked.
- Shock pulse is a stun/dot that must be cleansed.
- When felcasters die they turn into terrors. This things gotta die ASAP.
- Demolishers siege nova does less dmg the further you get from it.
Kill priority: Gorebound Terrors > Felfire-Imbued Siege Vehicles > Berserkers > Mar'tak > Engineers > Felcasters > other stuff
CDs:
DPS CDs should be used on the pull and for siege vehicles mostly.
Tank externals will prolly be big early on and when larger groups of adds are out with berserkers.
Raid Heal CDs will likely just counter the volly spam from when felcasters die and become terrors.