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Ungarrison a building. This makes a military building eject units.
The column of the unit to eject. Use 0 (zero) to eject the leftmost unit (in regards to the side panel of the selected building) . Use -1 to eject as much units as possible. This value is usually in the range -1..5.
If TRUE a bowman is ejected. Otherwise a swordman is ejected. This parameter is ignored if column is -1.