9 hours ago, Taki said:No, you're reading the rules far too narrowly. If firing arc wasn't supposed to be a line of sight issue, it would not be in that section. If a power allows you to ignore restrictions for a rule, you ignore them. Anyway, I have already sent an email. I ll post their reply when I get it, until then it serves no purpose going back and forth with this.
Firing arc is mentioned in the LOS section because that is part of how LOS is defined, by the firing arc. Areas that a unit has LOS to are a subset of areas that are in the firing arc of that unit. Again, there's a reason why the ranged attack specifically states that you need both Arc and LOS and effects like heartseeker are probably why.
I went back and found your argument on hopping over terrain, and its actually not the same as above, it's the same as your argument here. In essence both arguments are saying that something tells you to ignore X, and there is a part of the RR where X + Y are together, so clearly you ignore X + Y. Here its Arc + LOS, there its taking 55.3 and deciding that since colliding is a part of "overlap, sliding back and colliding" that you ignore the entire thing, not just the collision at the end.