The film is secondary to the event. We built the bridge but don't have money for troops, horses, costumes etc. so we worked a deal with the re-enactment group.
The scene is being covered with 5 HDV cameras, 3 Canon XLH1s and 2 others. Each shooter has his/her own directions for shot coverage. There is no dialog and the coverage just shows that the troops did destroy the bridge. The dialog scenes will take place around the smoldering remains and will be lit separately. They are actually going burn the bridge (pine straw and kerosene underneath where the water normally is) and I will have some 4x8 bounce placed for some of the close-ups that are planned when the bridge is fully involved (to show our actors amongst the re-enactors).
After sleeping on it I think my hands are fairly well tied. I have 50amps at best and no pre-lighting time. I may just spread the instruments along the length of the bridge. Maybe the best I can hope for is to provide enough exposure be able to see the troops before the bridge is lighted.