Sniper bots, and the anti-tactical missile turrets in our mod, won't turn towards the tactical missile they are shooting down, which can look really weird if they are facing away from the missile...
I have yet to find a solution for this, but I suppose if you attached it to the sniper barrel it might work. But then, you wouldn't be able to use the regular sniper weapon.....
AFAIK you can use 2 weapons on the same bone/muzzle as long as they don't fire at the same time, because then it would look weird.
