Since the patch, my guild has become the world first to get the Armored War Bear.
With this guide, it is extremely simple, depending obviously on the opposing faction, yet there is a time and a place for everything.... unfortunately the time and place for this specific achievement is early morning or in the middle of the night!
All boss's are intended for 80+.
SW Boss - Main ability - whirlwind: Have the MT tank him in the room directly east of where the boss is Originally standing. Get all casters and Melee to stand in opposite corners in conjunction to where the boss is being tanked. His whirlwind is easily avoidable - make sure you do so. Have one healer / reser stay out of combat at all time's in the event that a healer or dps dies. Have him stand as far away as possible from the rest of the group, as level 75 guards spawn which are to be taken care of by the melee. He will be able to ressurect the deceased and remain out of combat. If a healer goes low on mana... sacrifice yourself, get resurected and drink to full.
IF Boss - very dificult fight. Use the out of combat healer as best you can here. You will need around 4 tanks for this fight. Keep your melee on guards or taking down the alliance, as they will more than likely get one-hit by the cleave the king does. It's important to maintain dots and stings as this is one long fight.
Exodar Boss - Very easy fight. DO NOT drain his mana. Just brave it out, as this guy does not hit hard unless he is OOM.
Darnasus Boss - Many believe this to be a difficult boss, although done correctly it is just as easy as the Exodar boss. Have as few people in melee combat as you can. Fight her in the uper tier of the building. Save one out of combat reser. Keep all of your ranged at Max range, to avoid the AoE damage. Good raid healing is a must in this case. Drain her of her mana as quickly as you can. Priests should focus on Mana burning, as hunters and warlocks should with their draining and viper stings.
All boss's have over 5 million health, and due to them being Skull elite's, it is dificult to hit them. The fights are easy if you put the time in. The bear itself is 100% worth it in the end.
All Credits go to The Guild Nightshift on karazhan - World First for this Achievement.:bowdown: