Encourage legal concealed carry, it is a force multiplier and the foe never honestly knows who is and who isn't armed.
Have never less than 3 detailed-preferably 5 or more, trained and tasked to provide security near the access (one) point. Lock all other doors preventing egress from multiple avenues of approach.
Never inform the congregation of who the armed detail is have them sit to the rear and mingle. At least one should be at the door of the single entrance.
Cameras are useful but won't prevent an attack. They might assist security but likely not. Communication is an overlooked but critical aspect and simply a cell phone conference call with all supporting elements is helpful for success.
Then train. Train to attack, train to defend, know the weak points and strengths.
The single most common lethal mistake of "trained" personnel is complacency and complacency kills. The first rule in a gun fight is to have a gun, second is to have friends with guns and having access to at least one long gun is important.
War college teaches tactics and defending a minimum of a 3:1 ratio is mandated and 5:1 to insure success. Imagine a lone gunman bursting through a door with 10 pistols firing at him at 10 different and separate locations. Just one pistol could have prevented the Texas massacre. None would have not nor did.
Have never less than 3 detailed-preferably 5 or more, trained and tasked to provide security near the access (one) point. Lock all other doors preventing egress from multiple avenues of approach.
Never inform the congregation of who the armed detail is have them sit to the rear and mingle. At least one should be at the door of the single entrance.
Cameras are useful but won't prevent an attack. They might assist security but likely not. Communication is an overlooked but critical aspect and simply a cell phone conference call with all supporting elements is helpful for success.
Then train. Train to attack, train to defend, know the weak points and strengths.
The single most common lethal mistake of "trained" personnel is complacency and complacency kills. The first rule in a gun fight is to have a gun, second is to have friends with guns and having access to at least one long gun is important.
War college teaches tactics and defending a minimum of a 3:1 ratio is mandated and 5:1 to insure success. Imagine a lone gunman bursting through a door with 10 pistols firing at him at 10 different and separate locations. Just one pistol could have prevented the Texas massacre. None would have not nor did.