Yeah. That could be really good. I imagine that there would be some balancing issues, though. For one, it shouldn't be a hitscan weapon. It's bolts should have travel time and be fairly hard hitting. The way, I see it, the Crossbow will either be underpowered or overpowered. It will be really hard to balance against the sniper rifles. Maybe giving it much more accurate hip fire than a sniper rifle would help?