Assassination was one of my absolute favourite gamemodes on Java before it was shut down. However with the bigger playerbase that Bedrock has I'm sure it could come back!
If you don't know what it was, essentially it was a persistent gamemode where you go around a large map to collect coins in chests and kill other players for their coins. You could use the coins at various shops around the map to get better gear. So basically you had to avoid the big dogs while also killing people with similar gear to yourself. Shops acted as a kind of safe zone too. Everybodys items were reset I believe every 2 weeks, so you could get a fresh start and get geared up early.
If you don't know what it was, essentially it was a persistent gamemode where you go around a large map to collect coins in chests and kill other players for their coins. You could use the coins at various shops around the map to get better gear. So basically you had to avoid the big dogs while also killing people with similar gear to yourself. Shops acted as a kind of safe zone too. Everybodys items were reset I believe every 2 weeks, so you could get a fresh start and get geared up early.