For the ultimate purist experience—with multiplayer, original Japanese voices, and a FPS boost on modern hardware—the fan-patched "V2.0" PSP ISO remains a fantastic option.
Search for "Final Fantasy Type-0 English Patch V2 by SkyBladeCloud."
The "exclusive" descriptor attached to many downloads of this patched ISO reflects several important aspects of its status:
Long-range specialists using bows and dual pistols to pick off enemies from afar.