A multiple missile carriage and launch guidance module comprising: a plurality of missile launch rails; a common missile carriage wall comprising generally parallel spaced-apart front and back structural skins (18, 20), the carriage wall structural skins (18, 20) each carrying at least one missile launch rail of the plurality of missile launch rails such that the plurality of missile launch rails are carried in respective positions and orientations allowing for missile carriage and launch from the rails; and at least one integral channel defined at least in part by: a first channel wall that integrally extends from an inner surface of one of the carriage wall structural skins (18, 20) and engages either an opposing inner surface of the other structural skin of the front and back carriage wall structural skins (18, 20) or an opposing channel wall extending inward from the opposing inner surface; and a second channel wall spaced laterally from the first channel wall and integrally extending from the inner surface of one of the front and back carriage wall structural skins (18, 20) and engaging either an opposing inner surface of the other structural skin of the front and back carriage wall structural skins (18, 20) or an opposing channel wall extending inward from the opposing inner surface, when the front and back carriage walls structural skins (18, 20) are closed together. a plurality of missile launch rails; a common missile carriage wall comprising generally parallel spaced-apart front and back structural skins (18, 20), the carriage wall structural skins (18, 20) each carrying at least one missile launch rail of the plurality of missile launch rails such that the plurality of missile launch rails are carried in respective positions and orientations allowing for missile carriage and launch from the rails; and at least one integral channel defined at least in part by: a first channel wall that integrally extends from an inner surface of one of the carriage wall structural skins (18, 20) and engages either an opposing inner surface of the other structural skin of the front and back carriage wall structural skins (18, 20) or an opposing channel wall extending inward from the opposing inner surface; and a second channel wall spaced laterally from the first channel wall and integrally extending from the inner surface of one of the front and back carriage wall structural skins (18, 20) and engaging either an opposing inner surface of the other structural skin of the front and back carriage wall structural skins (18, 20) or an opposing channel wall extending inward from the opposing inner surface, when the front and back carriage walls structural skins (18, 20) are closed together. a first channel wall that integrally extends from an inner surface of one of the carriage wall structural skins (18, 20) and engages either an opposing inner surface of the other structural skin of the front and back carriage wall structural skins (18, 20) or an opposing channel wall extending inward from the opposing inner surface; and a second channel wall spaced laterally from the first channel wall and integrally extending from the inner surface of one of the front and back carriage wall structural skins (18, 20) and engaging either an opposing inner surface of the other structural skin of the front and back carriage wall structural skins (18, 20) or an opposing channel wall extending inward from the opposing inner surface, when the front and back carriage walls structural skins (18, 20) are closed together.