Ace Combat X: Skies of Deception Ace difficulty: Beat the game under the hard difficulty setting. ADF-01 Falken: Beat SP stage Operation X. XFA-27: Beat Mission 03B. SP stage Operation X: Beat all missions and all mission branches. Stage 03B Captive City: Beat Stage 05 or 06 before beating Stage 04. Stage 07C Time Limit: Beat Stages 07, 09, 11, and 07C in that order. Stage 12C Wild Card: Beat Stages 07, 08, 10, 09, and 12C in that order.