From the introduction: YOU AND YOUR TEAM OF ULTIMATE BADASSES ARE A SQUAD IN THE UNITED SYSTEMS COLONIAL MARINE CORPS, an elite force of soldiers trained to rapidly respond to unknown threats and dire situations across human colonized space. Or at least that’s what it says on the recruitment posters. In reality you’re a bunch of undisciplined Jarheads, under the command of out-of-touch officers who spend most of their time looking at a computer screen, whose primary duty seems to be cleaning up after the bumbling of interstellar Mega Corporations.