in DMM it's actually 2 archer + 1 pirate I think? but our version is still lacking silver pirate/ninja stability so they have not changed the cc'd requirements for those classes that use silver pirate/ninja (silver/gold in the case for AW)
might as well mention you need tons of gold at the same time (200k gold for gold AW, 250k for plat and 300k for black I think? too lazy to check seesaa.jp wiki)