This is awarded for completing the first 7 expert missions.
They are as follows:
1. Expert missions - tutorial 1 - great ape nappa
2. Expert missions - tutorial 2 - turles
3. Assault of the great ape - great ape nappa
4. Invasion of the evil super namek - lord slug
5. The galactic tyrant - turles
6. The depths of despair - great ape Vegeta
7. The big gete star strikes back - metal cooler
A few tips:
1. Innocence bullet (learned from buu) removes super armour and inflicts poison
2. Free people from mind control, if all allies are mind controlled the mission ends.
3. Revive allies, if all allies are downed the mission ends.
4. Online players make the missions easier, the bots are dumb and don’t make efforts to avoid attacks or rescue you from mind control.