What Army fans need to know as the Black Knights dip into the Football Bowl Subdivision in search of their first win. Who, where, when: Stony Brook (3-1) at Army (0-3), Saturday, noon Eastern. TV: CBS Sports Network (Ben Holden and Randy Cross have the call). Trend: Air Force’s first win came against an FCS opponent in the Falcons’ home opener. Navy’s first win came against an FCS opponent in the Mids’ home opener. This will be Army’s second home game of the year — kicking off a three-game homestand — but the first against an FCS school. Counterpoint: Stony…