If need be, switch the difficulty to Easy.
Easy Difficulty can be found in the Main Menu, by scrolling to Options & selecting Gameplay.
Start a Steel Cage Match with AJ Styles VS Curt Hawkins. Play as AJ.
His Minor Payback Ability, "Instant Recovery", will make this much easier.
Beat Curt up to the point where his health is red, or lower. Now, let him beat you up, to the point where he has his Signature Move. By now, you should have AJ's Recovery Ability. If Curt uses his Signature Move on you, don't panic. This usually means that he will start climbing up the cage. Once Curt starts the first minigame to make it further up the cage, use that Recovery ability, & climb after him. You should have a lot of time to make it to the top. If he does make it to the top of the cage, again, don't panic. He has one more minigame to complete before he slides to the other side & wins the match. Once the both of you are at the top & straddling the cage, punch & grapple Curt until AJ throws him all the way back down to the mat.
Achievement Unlocked.
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If you have a way to make this even easier, feel free to share it in the comments below.
Once someone else confirms it, I will add it to this solution.
Happy Halloween, you all.