Although a gamemode would be convenient, you can do this with add-ons and a normal death match. Tito actually made a killer battle royale build earlier this year.you'll probably want Server_KillBubble if you want the map area to decrease over the course of the round. Event_SpawnRandomItem can also be used for random weapon drops. both can be found here: https://forum.blockland.us/index.php?topic=297264.0and if players are dropping in, Item_Parachute