Who said she didn't have help? She could have talked her lover boy Wedge into tracking down a few rouge chimeras (And there are a few poking around since they were over world enemies in 1.0 Mor Dohna) then get him to blast it with a weapons grade Magitech Cannon. Pretty sure as head over heels as Wedge is for Tataru he'd be willing to do just about anything just cause she asked.
And being love stricken combined with commandeering a Garlond Ironworks Magitek Armor would probably give him the reckless disregard for his own safety to go Chimera Hunting as well as the firepower to come back alive and pelts in hand afterwards.