Warrior Tanks: Maximizing DPS Output

[Instrumentality]

You actually don't want to use Berserk on CD because it ends up contributing less over time than if you only use it once every 120 seconds while you've got Unchained. The reason for this is pretty simple: the 33% damage increase from Unchained balances out the loss of contribution from artificially increasing the CD by 33% (90->120) but it also reduces the loss in damage from the Pacification effect from it by 33% for the same reason.

If you've got IR, you want to use Unchained>Berserk>IR in that order whenever you've got Unchained up and use IR on CD otherwise (it's a 60 sec CD compared to Unchained's 120).

So assuming you have a healer that can clear the Pacification debuff within ~1 second of it hitting your WAR you should use Berserk on cooldown?