Kuromoromine Stories

In a slightly altered universe. Oorai Girls High School, in an attempt to ensure that their existence would not end during the 63rd National High School Sensha-Do Tournament decided to call for help. They were answered by an American school dumping an M26 Pershing and its crew of undesirables on the poor school. But is this team actually as undesirable as claimed or are they more than meets the eye? (Before you say anything, the Transformers line is not eluding to anything in regards to the characters)