Adding base structures
From Mod Wiki
Now let’s add a GDF base structure near our spawn points. Add a new reference, maps/references/cc.world. The command center has its own turret to defend the base from artillery strikes, enemy infantry and vehicles. To further secure our base we can add base gates. Add a set of base gates by adding a new reference, maps/references/valley/gdf_base_gates_north.world. Only GDF players and vehicles will be able to pass through these gates. A typical GDF base will have more than one exit, but one set is ok for now.
