Thread:SlyCooperFan1/@comment-35674913-20180619043045/@comment-1824272-20180619044349

I can confirm, without a doubt, that it is impossible to play Wild Card if you play 11B, In Pursuit II. The reason for this: Wild Card's second stage features a set of long-range missile launchers set up by the Skylla Unit. If you play In Pursuit II, you interact with the Skylla Unit in that mission, preventing them from reaching Griswall. However, playing In Pursuit I means the Skylla Unit managed to arrive at Griswall.

I would also like to mention that I own the Ace Combat X: Skies of Deception - The Complete Guide which confirms there are only two possible paths to unlock Wild Card:
 * 7A/7B -> 8A -> 10A -> 9B -> 12C
 * 7A/7B -> 8A -> 10A -> 9B -> 11A -> 12C

Simply put, that guide mixed up In Pursuit I and In Pursuit II.