That's the kind of things I would prefer to be fixed well before adding Vampires or anything, alas... 
I had 6 marksdwarves (each with level 3+ in marksmanship) station, half did not carry any bolt, even after quite some time (yes, everything checked, quiver, tons of bolts everywhere to pick up, etc.). They ended up charging an Incubi and clubbing him to death (thanks to the others who made him fall from the sky with a lucky shot).
I'm much more struggling with the bugs or obscure interface than with the monsters in DF. I now remember why I quitted playing last year, and the year before that. Yet I return to the game every year, hopping priorities have been asserted rights (i.e fix the atrocious interface and this kind of obscure bugs). But no.
Oh well, sorry I have to vent this out, and this thread is as good as any other, because anyway it won't be read by the developer probably. 
the good news, my friend, is that he
is working on them now. Starting with the highest priorities (in his mind) and working up.
Don't fret, a good programmer knows where best to put his priorities. I speak from experience.