In order to obtain this achievement, you must pass the ball fourteen times through the middle lane in the left of the table that contains the words MAIL.
After the 12th ball, the balls will be retained, starting the multi-ball after three balls are kept, thus triggering the achievement.
The game has been patched and now unlocks the achievement properly. (Thanks Kalujo for the tip)
Unfortunately, at this moment, the game is bugged and unlocks the following achievement instead. The Combo Enthusiast achievement in Pinball FX2 worth 44 pointsCollect at least 15 combo counters with one shot on the Deadpool table. (Single player only)
It unlocks it even if you don`t own deadpool's table. I will change the guide once it is fixed and the achievements becomes obtainable.