Board Thread:General Discussion/@comment-69.47.136.246-20130712035032/@comment-25586184-20141101024643

Lydia fires the crossbow. I keep her stocked with bolts, including explosive bolts, and not only does she raise the crossbow, but I hear it fire, see the bolt fly, sit it hit the target, and often, she staggers it. This is in open terrain. In close-quarter interirors, she may be exercising caution to avoid friendly-fire on the Dragonborn. To my knowledge, she's never hit me, although she has arrowed my ass more than once.

I don't even think you need to keep her stocked on bolts, as she still always seems to have one, but I will test that on X-Box360.

Even Serana will fire a crossbow....at vampires, no less.