ok so here's the problem, i'm trying to get Xiao Qiao's lvl 10 weapon but i can't figure out how to get Battle of Cheng Du for Wu Forces. i read somewhere that if Act V is Fall of Shu scenario then the final act would have the Battle of Cheng Du but it didn't work for me... did i do something wrong or is there some specific way to get it? if someone could help me it would be a huge help, i've been trying to figure this out for a couple days now

i dont know if ur talking about psp version cause in psp version i dont know if there is a lvl 10 weapon...