strategyonly
C2C Supreme Commander
It was about 20% of the time you would have captured (iirc) but only if the plot does not already have a resource and if it is not next to a resource of the same type. People were complaining that they were getting large areas of deer for example. Which is the reason for the last restriction.
I get two or three fish/crab resources this way per game. In my current game I have had both a deer and poultry resource spawn.
You must be getting the lucky maps then, not so much for me, but if its 20% thats perfect then, thx.