Just ran our first session of Rogue Trader and suffered two PC casualties because the PS Navigator used his (Adept level) Lidless Stare in a melee. The book has the following:
The Lidless Stare will affect anyone, friend or foe, that looks
into the Navigator’s third eye when this power is activated.
This has an effective range of 15m (reduced to 5m in fog or
mist) and has no effect on unliving targets, Untouchables, and
daemons or other entities from the Warp. Those forewarned
can look away, though even then being within line of sight of
a Navigator is dangerous. The power of his eye is persuasive,
and looking away only grants them +30 on their rolls to
resist its power. Those who are unaware of the Navigator’s
presence gain this bonus as well.
My question is whether "line" of sight takes facing into account. I would think that if someone is back to back with the Navigator, then they don't have a chance of being affected (neither is looking at the other). Is that right, or is there no accounting for facing at all?
If facing does matter, then what about someone with the Navigator standing behind them looking "over thier shoulder" so to speak. Is that a 0% chance of being effected, just the +30 mentioned above, or something in between?
When someone is in melee with just a single foe, it's clear which direction they would be facing. In other situations it is not clear. Is there an official stance on facing? We're using miniatures so it would not be too hard to tell roughly which direction someone is looking (more or less).