The grassy hills and lakeside pier of a sprawling park in Coppell have been transformed into a makeshift boot camp. It's a windy Saturday in December, and as the bullet-gray clouds grow heavy and drop low, newly enlisted soldiers march, read maps and learn rank symbols. One group stands in formation on the basketball court, stepping and turning in unison. "Use that heel!" calls a uniformed drill sergeant. "If you're gonna turn, use the bottom of the foot! This ain't... More >>>