Motions filed in the main case pursuant to Bankruptcy Rules 9013 and 9014 do not require briefs or memoranda of law, but parties may file such where they would materially assist the Bankruptcy Court in the determination of the issues. Unless the Bankruptcy Court directs otherwise, the form of such briefs and memoranda of law must conform with BLR 7007-1. If allegations of fact not otherwise in the record are relied upon, supporting affidavits may be attached to the motion or memorandum of law.