Though Hawaii has a history of preparing for the triple-option offenses favored by the military schools, its home-field advantage has been way overestimated. The Rainbow Warriors have covered in one-fourth of their last 32 games on the island. Air Force coach Troy Calhoun has plenty of experience taking teams to Hawaii. The visitors rank eighth in FBS in time of possession at 34 minutes, which could keep the Warriors’ fourth-rated passing offense on the sidelines too long for its own good.