What Black Knight fans need to know as Army continues its tour through the Mid-American Conference. Who, where, when: Army (1-5) at Eastern Michigan (0-6, 0-3 MAC), Saturday, 1 p.m. TV: ESPN3 (Dan Gutowsky and Bob Chmiel have the call). Gambling is illegal in most states: Army is a 2.5-point favorite. Common opponent: Army lost to Kent State 31-17 last weekend. EMU lost to Kent State 41-14 on Oct. 6. So, defense might be an issue?: Yes, especially with Army missing top linebacker Nate Combs and with the EMU offense coming off a 47-point performance last week at home against…