Then Arvus will do so.
"Butch, we need you," Arvus comlinks to his assassin probe droid. "We're following an Osokan convoy carrying crates of an unknown contents; we need you to follow them, we're not fast enough on foot."
Just in case it becomes relevant, Butch is loaded with numerous weapons, mostly of stealthy purpose. Gas cannisters, needler, dart launcher, etc., and whatnot.
Also, would it be possible for Arvus to have a means of monitoring through Butch's photoreceptors?