I think this is how the two will interact. Looking for confirmation or a dissenting argument.
Gallant Haven - "Before a friendly squadron at distance 1 suffers damage from an attack, reduce the total damage by 1."
Brace - "When damage is totaled during the "Resolve Damage" step, the total is reduced to half, rounded up."
Resolve Damage Step (pg 2) - "The attacker can resolve one of its critical effects. Then the attacker determines the total
damage amount. Then the defending squadron or hull zone suffers that total damage, one point at a time."
My reading of all this is that using Brace on a squadron which is taking X damage within distance of 1 of Gallant Haven will result in the squadron taking (X/2) - 1 damage. In other words, Brace is applied first, then Gallant Haven reduces the remaining damage by 1.
The reasoning behind this conclusion: There are 3 substeps in the Resolve Damage Step.
a)Resolve crits
b)Determine total damage
c)Suffer damage
Brace occurs during substep 2, because it uses the when timing trigger and refers to totaling damage.
Gallant Haven resolves betwen substeps 2 and 3, because it uses the before timing trigger and refers to suffering damage.
Assuming this is correct, this means Brace happens first, then Gallant Haven. However, this is all based on the assumption that the Resolve Damage Step can be broken into substeps, based on its structure of "do this, then do this, then do this", and the assumption that these substeps represent individual discrete events as far as the timing triggers are concerned. If this second assumption is not true, that means that Gallant Haven's before timing trigger would occur before the Brace's when timing tirgger, and the damage would be (X-1)/2.
As an Imperial player, the latter outcome certainly appeals to me. Named pilots are going to be even more a pain to deal with if they can Brace and then reduce. My reading of the rules, however, seems to justify that order.
Anyone else got any ideas on how this is ordered?