The island is as big as a Squads map, with natural world gen (plains, forest, desert, and these can be voted in the hub)
So there are no chests, and all ores behave like vanilla ores.
You have 3 minutes to suit up
Crafting, smelting, mending, enchanting, you name it. All enabled.
After 3 minutes the barrier opens and (yes you need to craft a compass) you track the nearest island, bridge over and PvP them. LMS wins
I think no-regen in general, maybe if it looked like vanilla but the frequency ,and maybe even concentration in some places, of different ores. It could have zones like biomes so that there could be forest at spawn and the island between team islands could be villages.