@Justan Just a few of many threads on this topic.
Church Security: Teams and situations - Miscellaneous - USCCA Community (usconcealedcarry.com)
Church Security Training - Firearm Training - USCCA Community (usconcealedcarry.com)
Church Security Team - Miscellaneous - USCCA Community (usconcealedcarry.com)
Church Security Procedures - Miscellaneous - USCCA Community (usconcealedcarry.com)
Church Security/Safety - Firearm Training - USCCA Community (usconcealedcarry.com)