User blog comment:StagedDom19/Missing the Main Problem/@comment-5124348-20120710142656/@comment-5274392-20120710170817

Actually, the Cain you do use destroys the Reaper at the beginning when you first land. As I've said, you'd still be able to kill the Human reaper just as easily as any other reaper even when it is complete. The Collector ground forces wouldn't even have reached Earth because their one ship would have been blown out of the sky.