Quote Originally Posted by furtim View Post
By choosing a tank spec, your threat from damage is multiplied by 300%. So as long as you can keep your damage output within 1/3 of the DPS, you should hold aggro purely through damage.

In case you lose aggro, you can use Forced Attack skills (I think Guards have 3, but I don't recall exactly) to execute a threat catch-up that matches the highest aggro on the target's list and then gives you an extra 20% threat on top of it. I believe Engage does something similar on Live, except that the new skills have an additional buffer added on top.
small correction, but it's actually +300% from everything i've read, so you only need to be above 1/4 of the highest aggro holder.
and this threat bonus is applied the second anyone picks yellow or blue as their trait line. no stance to toggle or set bonus to acquire.

also, to the original question, shield-taunt is still a skill for blueline only. i'm not sure how much threat is generated from it, but all other threat is dps-based plus the 'catch up' mechanic with the forced taunts.



also of note, challenge, fray the edge, and engage are basic skills that work the same way regardless of spec, so it will be possible to force taunt while red line with any 3 of these skills and effectively 'off-tank' something. it might also be possible to tank as redline, but i would say that yellowline using a 2h makes that a bit unnecessary.