Often times when Army wants to run the Zone Option, the 3-technique can create penetration.
When this happens, they get into the Heavy Formation.
Then, they run the Down (also known as Belly-G).
This is a gap-scheme concept to control the penetration of the 3-technique when they run off-tackle especially when they don’t get four yards on the give to the B-Back on Triple Option.
Both Tackles block down if there is a threat in their gap. If not, they would veer inside and block the first linebacker that shows. The Playside Guard traps the first threat off the Heavy Tackle.
The B-Back runs through the inside leg of the Heavy Tackle and gets vertical.
This controls the 3-technique when the offense can’t get four yards on the give phase of the Triple Option.