It's absolutely pointless unless your using it on Single Player, and Hunter mode is exceptional because you've got to use it.
I've seen many people ending with a terrible K/D because they think the Bow is the ultimate weapon. I'm not saying you can't go on a insane killing streak but you'll probably have to camp with cloak activated.
If you use the Bow, please enlighten me, as to why it's good to use competitively.