The Marvel's Guardians of the Galaxy: Vol. 2 Movie Level Pack Add-on for LEGO Marvel Super Heroes 2 has 5 achievements worth 50 gamerscore.
Complete 'Awesome Mix Vol. 2'
Complete the 'Awesome Mix Vol. 2' level with all Minikits unlocked
Complete the 'Awesome Mix Vol. 2' level after achieving True Believer status
Play as Groot until Mr Blue Sky stops playing
Damage the Abilisk using the Anulax batteries