Return to claim flags ( only A idea )
Start game with 1 company claim flag of 50/100 meter radius.
Company flag has a gold cost to keep it active ( 100/24hrs ? )
Each member of the company gets a claim flag at lvl 1 25 meter radius.
Each member gets a second flag at lvl 20 then one every 10 lvls after that.
Each member flag placed after the company flag adds gold cost to the company flag ( 25g/flag ? )
ANYTHING built outside of claim flag area decays in 24hrs ( ships need different timer perhaps same as tames , you can claim after 10 days )
If company flag runs out of gold ALL flags on entire map go down over 24hrs then decay takes over for another 24hrs.