"Wonder Toy" Arena

Some people would like to play with big power weapons and I was thinking, How about a do-nut shaped arena where you start with just a pistol and have to race to the outer edge to find power up weapons.
Because the map lay-out looks the same in all sections until the get next to the weapon you’ll not know what you’ll get, could even be empty or the best weapon you like. It would mean everyone gets a chance to get big power weapons … " Rail gun on the the field " great but where ???
The same could be done with vehicles if the map was big enough?

The wouldn’t even be hard maps to make ??

I think this is more for forge, but suggestions etc will be posted later.