The R4 Base Defensive I.D. training course consists of 6 modules that cover how to identify defenses. This course teaches the main building blocks of defensive front, coverage, stunt, & blitz families.  The course goes into detail on the strength & weakness of each defensive weapon and the relationships of how one protects the other. This course includes a testing process that guides players how to teach one another to accelerate learning and retention. 

• Understanding the relationships between base coverage 
• Learning strengths & weakness of coverage design
• Understanding the relationships between blended coverage
• Learning strengths & weakness of advanced coverage design
• Understanding the relationships between base fronts
• Learning strengths and weakness of front design
• Understanding the relationships between stunt families 
• Learning strength & weakness of stunt movements
• Applying a coding language to communicate stunts
• Understanding the relationships between blitz families
• Learning strengths & weakness of blitz design
• Applying a coding language to communicate blitzes 
• R4 testing format that accelerates player learning