I used the ballista mostly when i started bo2, but i grew onto the dsr.
1. the DSR is deadly from waist up, ballista is from chest up, giving you a bigger hit box
2. I quickscope or hardscope, or snipe. Ballista seems smoother and easier to control, where the DSR is big and gaudy so it's more for sniping long range compared to ballista easier to quickscope with due to it being skinnier in the hud, able to control it more from what i noticed anyways.
Franks right also ^
I manage a 59% acuracy with ballista, and a 56% with DSR. Both my top 5/ or so guns lol
This post was edited by vGoaTT on Jan 2 2014 11:27am