A small merchant ship carrying one launcher with four missiles could offer a niche means of getting weapons close to an opponent. The operation would require control of the entire crew because any member could disclose it through modern communications. Engineers must provide power, while bridge staff, deck hands, and stewards all know something about the ship's activity. Replacing everyone with naval personnel introduces unfamiliar commercial engines and operating practices. Hired civilian sailors would also have to be willing to face the danger of the mission.
Notable Point · 3:39-5:37
A concealed launcher depends on the whole merchant crew
Crew loyalty, access to power, machinery knowledge, and willingness to face combat constrain a concealed merchant-ship launcher.