From publisher blurb:
The Midgard Variants are a trio of new ships produced by Midgard Shipyards. These progress-level seven designs are based on alien specifications recently discovered in the ancient ruins of a sunken city. While fully capable of operation in deep space, these vessels also function at full capacity while submerged. Rejected by the ConFed military these unique, cutting-edge vessels are now for hire to the highest bidder.
Atlantis is a light carrier and the flagship of the Midgard line. It carries 20 fighters and a crew of 160. Also presented in this installment are Partisan (an extended version of the Atlantis, carrying 36 fighters and a larger crew compliment) and Corvus. Built for patrol and escort duties, this frigate does not carry any fighters but is still heavily armed and a force to be reckoned with.
Overview
27 page PDF file detailing the ships, interior locations, and personnel.
Open Game License stats provided for the vessels, crew, and fighters on board.
Though they use the same set of map pages, separate stats, composite maps, and exterior views are provided for all three ships.
Map Books
Four full-color page PDF files (89 pages total) containing complete interior maps at "1 inch = 5 feet" scale.
A separate book is provided for each of the 4 decks, making it easier to print out the maps for the variant designs.