Both Vilus Garr and Captain Horic have taunt immunity and cannot be taunted.
Battle Companions
If one of the Warlord dies and any of the remaining ones are significantly injured, they will get heal for quite a bit. Basically, focus your DPS and kill them one at a time.
Spray and Pray (Captain Horic)
Conal attack directed at one person in the raid. Raid should be positioned in an arc in front of Horic so that the conal attack doesnt hurt the whole raid.
Fixate (Sunder)
Sunder will fixate on the closest person to him and walk towards their direction. A tank should be the closest player to Sunder at all times to keep aggro. If he fixates on someone else, tank can still taunt him back.
Immobilize and Knockback (TuChuk)
TuChuk will utilize this once both Vilus and Horic are dead. Tanks do not want to put their backs to a wall as they will get knocked back into it and receive significant damage from a debuff called Near Wall.
Cartel Lieutenant (x3)
These adds spawn once all the warlords but Sunder are killed. They cannot be taunted.
The End (Sunder)
An ability Sunder uses if he is the only Warlord left. It is a 5 second cast and at the end of the cast he deals massive damage to the target with threat. Use defensive cooldowns to survive it.
Damage Increase (TuChuk)
If TuChuk is the last of the warlords left alive, he will gain a stacking buff that increases his damage output and the fight becomes a burn phase.
Cartel Warlords is basically a group of 4 bosses: Vilus Garr, Captain Horic, Toraga, and Sunder. The fight isnt particularly hard but the surviving bosses do gain additional abilities as each warlord is killed.
The suggested kill order is Vilus Garr <> Captain Horic > TuChuk <> Sunder. The raid should focus DPS on one warlord at a time as these guys heal up if they get significantly injured when the other warlords are killed.
Phase 1 Vilus Garr & Captain Horic
Both Vilus Garr and Captain Horic have taunt immunity so they cannot be tanked and must be killed quickly. Sunder and TuChuk can be tanked. TuChuk tank can position themselves near a corner while the Sunder tank will have to kite Sunder around and make sure they are the closest person to Sunder due to his Fixate ability (he will fixate on whoever is closest to him and follow them). If Sunder fixate on a DPS or healer, he can be taunted back onto the tank.
Vilus Garr isnt too much of a threat. He has an Explosive Surge ability that deals around 3.7k damage and pops in/out of stealth constantly. Captain Horic is much of an issue due to his Spray and Pray ability that deals 3.4k every second for 5 seconds if you dont move out of his conal.
All DPS and healers should form an arc around Captain Horic so that if someone get targeted by Spray and Pray they can move and not get the rest of the raid sprayed ((the conal stays fixed in a direction once the channel starts so you can move out of it), You will know who receives the conal as there will be a red text message on the screen.
Once either Vilus Garr or Horic are killed, Sunder seems to gain an ability where he will leap to the tank and whack them a couple times.
Phase 2 TuChuk & Sunder
Once Vilus and Horic are dead, phase 2 starts. TuChuk will begin to knockback the tank and immobilize them before leaping over. TuChuks tank will need to becareful to not have their back near a wall as the walls actually put a debuff on you called Near Wall that basically stun and hurt you if you get knocked into it by TuChuk.
Meanwhile, the Sunder tank can keep kiting Sunder around and get ready for phase 3, which begins once either TuChuk or Sunder is killed.
Phase 3 Remaining Warlord & Cartel Lieutenants
Once TuChuk or Sunder is killed, three champion Cartel Lieutenants will spawn and they cannot be taunted. The remaining Warlord will gain additional new abilities.
Sunder, if left alive, will now cast a 5 second ability called The End. This attack deals massive single target damage to the target with threat (i.e. the tank) but they can survive through it if they have a defensive cooldowns.
Tuchuk, if left alive, will gain a stacking buff that increase his damage output and this phase becomes a burn phase to kill Tuchuk before he gain too many stacks. You may need to ignore Cartel Lieutenants and just focus on Tuchuk.
