It's been a while since I've played (pre SR4!), but I'm starting out a new campaign as GM. I'll start out with the first bone of contention that's arrisen regarding Armor and Manabolt. We always ruled it back in the day that a person in armor, regardless of type, sealing etc could be targetted by mana spells just fine, as it was assumed their 'aura' would leak out or whatever, allowing the Mage (or anyone else) to just know they were targetting a living being.
Now we have Cyborgs, which specifically can't be targetted in such a manner. I regard the brain in a box as essentially just the Rigger in a van, you can't target it because he's in there somewhere behind blacked out windows, but you don't know where. However, one or more of my group are arguing that being inside Envirosealed armor is similarly sufficient to block LoS.
Opinions, or any canon clarification?