From the title screen select Be A Pro mode.
Once you're in the screen where you're entering your info about your player and picking his/her gear, at the end where you can pick between playing in Canada (OHL, QMJHL, WHL) for the Memorial Cup, in Europe for the Champions Hockey League Trophy, or directly into the NHL by your default favorite NHL team, MAKE SURE YOU SELECT PLAY IN EUROPE as your players story.
From there you can adjust game setting and sliders.
Once you're able to start playing games, keep winning via sim (whole game or by period) or you can play the game to rack up points to help your draft position.
Make sure you win the Champions Hockey League Trophy (via sim or playing the game).
Achievement will pop as soon as the game ends with YOU winning.
Any issues please comment before voting thumbs down