Karen Delich, a health specialist from Colorado Springs addresses students attending Weapons and Tactics Instructor Course 2-17 and Marine Aviation Weapons and Tactics Squadron One staff during a tactical risk management period of instruction at Marine Corps Air Station Yuma, Ariz., March 15, 2017. WTI is a seven week event hosted by MAWTS-1. MAWTS-1 provides standardized tactical training and certification of unit instructor qualifications to support Marine Aviation Training and Readiness and assists in developing and employing Aviation Weapons and Tactics. - Karen Delich, a health specialist from Colorado Springs addresses students attending Weapons and Tactics Instructor Course 2-17 and Marine Aviation Weapons and Tactics Squadron One staff during a tactical risk management period of instruction at Marine Corps Air Station Yuma, Ariz., March 15, 2017. WTI is a seven week event hosted by MAWTS-1. MAWTS-1 provides standardized tactical training and certification of unit instructor qualifications to support Marine Aviation Training and Readiness and assists in developing and employing Aviation Weapons and Tactics.