Hmm.. it seems that the Sydian Females have some scenes that can only be accessed if you manage to remove her armor. But from what I've seen so far, her armor usually takes very little damage - she always loses her health bar way before she'd be losing her armor bar. So when the above happened and I managed to take off such a huge chunk of her armor with my second shot perk, it got me wondering 1) why that happened ( I guess the stars aligned and all my damage perks must have procced? ) and 2) even with that happening, she still had 60 armor left when she fell over, so I wonder how anyone would manage to trigger these scenes? Unless perhaps other classes have armor-stripping perks, or there are weapons that specifically strip armor?
The wiki says her armor is "ablative" which I suppose could mean that you could do it by poking her with a stick a hundred times until her armor gets sufficiently weakened that it drops faster than her health bar. >_>
It was in another thread, hammer/smashing/blunt or whatever type weapons are for armor.