I was playing through HL1, and there's a part where you can pick up some sort of bug as a weapon; when you throw it, it starts devouring everything in sight until it's killed...
So...Is there any way something like that can be created, but using an infection form instead? The FP anims could be quite fun, with the infection form squirming, perhaps the MC poking it during the idle anim, and so on.
Even if it's just for SP, is it possible to make a weapon spawn an AI? If not, then I guess it could work as an oddball... <_<