Well, it's not *really* new. In fact, some of you reading this are probably younger than the product itself! But here it is from High Rock Press: the original 1988 version of Strike Force: a real piece of gaming history! In 1988, Aaron Allston and Hero Games released Strike Force, a supplement detailing the first eight years of his superhero campaign. Noted for its extensive and highly-influential advice to gamemasters on how to run a long-term campaign, Strike Force is a landmark RPG publication: part campaign sourcebook, part GM guide, and all awesome!
This original version is 98 pages and for the good old Hero System 3rd Edition. The zip file you are downloading includes the original PDF, the cover, three manuscript versions of the original text: .doc, .rtf, and an ancient .wpd file! (That would be a Word Perfect file for those of you under 30! It opened in my copy of OpenOffice without any problems. So maybe it will for you too.)
Additionally, thoughtful fan Scott Baker, realizing the original 1988 file was a scan, ran it through OCR to create a searchable PDF using automated processing. (Neither he nor High Rock Press are planning to manually edit the results.)