While it is possible to launch one at the feet of several guards and knock them out, if they are packed very tightly together this does not happen often. Gas arrows do not arc in flight. Rope Arrow Rope arrows are semi-limited in their uses, but indispensable nonetheless. When the rope arrow strikes a wooden, earthen, or carpeted surface it will drop down a rope for you to climb. That withstanding, however, the rope arrow is a welcome addition to the arsenal.
Rope arrows arc in flight.
The vine arrow works in much the same way as the rope arrow, except it is also able to attach to metal grating. Vine arrows arc in flight. While not the most useful of the arrows, noisemaker arrows are good for distracting guards. If there is no other way to make a guard move away from where they are, then try a noisemaker arrow. When they do move, however, be quick.