KABUL, Afghanistan — Rain pounded the metal roof of my small room early Friday morning. The rapid repetition of drops, however tinny sounding, awakened me two hours before the alarm rattled me off my bed.Low clouds and especially the rain's unwelcomed melody did not sound good at 4 in the morning since several of us — including Sgt. Dave Morris of Silver Springs — had a civilian helicopter ride from Camp Phoenix to Bagram Air Field. With the sun gradually rising above the ring of mountains surrounding Kabul, the ceiling also appeared to lift, showing intermittent clouds added with a …