Farm

Farms can be built around gristmills. Each gristmill can "hold" 8 farms. Players should watch their farmland closely, because it's extremely important for food production. Farms can get barren and nothing will grow on them anymore! But also the enemy forces can spoil the ground and destroy the farmland. Each farm has the 20 hitpoints of the attending Pig and provides up to 300 food.

Defense
Machine Gun Nests around the mill(s) can be a useful support for the moving units. They at least should be able to keep the enemy at bay for some time, but this of course depends on which difficulty was chosen.