WASHINGTON — The military is cracking down on special operations troops who share knowledge of their secret missions for profit, punishing seven Navy SEALs, including one involved in the mission to get Osama bin Laden, who moonlighted as advisers on a combat videogame.

Current and former SEALs, including the author of a tell-all book on the bin Laden raid, said they are getting mixed signals from the military, which likes to see itself on big and small screens on its own terms.