The Arcus root is the worst sniper for effectiveness. Its arrows travel about as fast and with the same drop as an RPG, making hitting targets far away almost impossilbe, while hitting nearby targets results in low damage due to its sniper-style range.
The bow zooms to .25 when in scope, is extremely slow to move while in scope, and shows several bubbles in a horizontal fashion for aiming. The scope is much like the Robot 2 snipers.
The bow does 50 damage with headshots, (extremely difficult to get, however), and fires in a loop like the plane and AA gun. However, the ROF is rather slow, so the most possible shots on an enemy's back before they turn is two, after which you had better have an LRP!This weapon is used primarily for t-bagging, as it has a very peculiar look, but you'd be better off using the default sniper if you want to kill.