This milestone quest requires you to complete common quests.

Quests in Fortnite have the same rarity classification as weapons. You can see the rarity of quests if you pull up the quests menu and observe the colour on the left side of the quest description.

Common quests are grey and only appear after you complete the uncommon quests. Uncommon quests refresh daily and are worth 22,000xp a piece. When you complete an uncommon quest it will be replaced with a common quest worth 2,200xp.

Common quests are very easy to complete. Just make sure you familiarise yourself with them before you enter a game as you might be required to land at a specific location in order to get the quest.