OK, so I've finished off everything on this planet but this task. The ship that is supposed to get shot down just hangs in space while the gun says it is an "inactive" gun when my mouse flies over the back of the gun. I sat there and watched another player come through and it looked like it all worked for him or her, but for me, I can't get this gun to shoot. All of my lights are lit and flashing, so I really don't know what else to do here. Anybody got any ideas? This is my 3rdtime through the game and although it was summer when I played Traken-4 last, I don't remember having to "activate" the gun. In fact, I've been to every tent and hut in the area, and nothing is clickable. I've even reset the mission and that didn't help.