First opus of the "campaign-of-the-end-of-the-world", this campaign is militaro-military at heart. However, it is sufficiently well thought out not to be linear and dirigiste. It all begins with a "small" conflict between two corpos who fight over the remains of a bankrupt third. Black ops galore, new careers (dive master, specialized technician, etc), new equipment and weapons. Scenarios are like synopses and need to be reworked to come up with something playable. The last one is a masterpiece... The background is detailed and explains the ins and outs of this "world war" (in localization). If you like the sea and undercover action, throw yourself on it.