You don't need a 3D to kill animals. Heck, you don't even need a weapon. Just strip down naked, hide in a tree and jump on their back and bite them to death. Even though you don't need a 3D, you may like haveing one anyway. I've got a Shannon Bug Tamer Plus and its o.k. I didn't care too much for it after I wore it a few times. I bought a Scentblocker 3D and love it. Quiet, lots of pockets, made very well. Drawback is its expensive. I'm thinking of getting an ASAT 3D. I know I don't need it but maybe I'd like it anyway.