This is an easy one. just play through the UEFA Champions League chosen from the main menu. Play 5 minute matches on beginner. You will have to play a total of 13 games (6 games in the group stage, 2 games for each the round of 16, 8, and 4, and one game for the final.) In the group stage, you must be in the top 2 of your group to advance. In the knockout rounds, you must score more goals than your opponent. In the final, simply beat the other team and the achievement is yours.