Army, Navy, and Georgia Tech have played a combined 30 games so far this season. In 27 of the 30 games (90%) their #1 play they ran in each game was the following:
Triple Option was the #1 most utilized play in 11 of the 30 games.
Zone Option was the #1 most utilized play in 10 of the 30 games.
Zone Dive was the #1 most utilized play in 6 of the 30 games.
Therefore, Triple Option, Zone Option, and Zone Dive are the go-to plays 90% of the time for Army, Navy, and Georgia Tech.
Triple Option and Zone Option are the #1 play in each game 70% of the time through the first 30 games of 2018.