MaDwurschT, I went back to Tatooine to test your query:
3. Where are Taunts factored into Guard damage? Is it:
- 30% less damage to both the targeted player and the tank?
- 30% less damage to the targeted player only?
I will be using Shiv for this test. Shiv is one-tick Tech damage.
Normal unguarded attacks to targeted player from Shiv:
979 average normal damage
1661 average critical damage
Taunted, unguarded attacks to targeted player from Shiv:
671 average normal damage
1169 average critical damage
There is about 30% damage reduction across the board. The tooltip of Taunt is indeed accurate!
Non-crit, Shiv on targeted player without Taunt:
Tank: 427 average
TP: 468 average
Standard split damage reduction. Tanks have more armor, thus less damage, etc.
Non-crit Shiv on targeted player with Taunt (1):
Non-crit Shiv on targeted player with Taunt (2):
Non-crit Shiv on targeted player with Taunt (3):
These three attacks are where it gets interesting: It shows that the tank does not benefit from the damage reduction of Taunt through Guard damage, but the targeted player definitely does to the point where it consistently takes less damage than the tank. This means that Taunt damage reduction is calculated after the initial raw damage has been split.
Math shows that it has an additional damage reduction of around 30% as well when compared to a guarded attack without Taunt, which is consistent with the averages earlier in the post.