Here is a quick fix to Brave Brave Sir Robin’s achievement.
Guide to Fix Brave Brave Sir Robin Achievement
- Go to the matchmaking screen menu.
- Select “Offline” at the top left, select “Play Tutorial” then finish it even if you already did so.
- After doing that, go back to the “Offline” screen menu, select “Offline Practice”.
- Set the score limit to 50 and get 50 kills.