The Imperiallines 06 and 07 editions (from a certain seller of PDF game products) are also very helpful and fun. I think they were written by a few designers of the T5 Core book. ( not naming names or companies).
Imperiallines 6+ are FFE. They ARE T5 products. They are canonical, as far as I can tell.
Marc has a discussion style modeled on artillery gunnery....
Drop explosive. Watch the explosion and fallout. Correct, and redrop undil desired or at least acceptable target coverage is achieved.