From publisher blurb:
Someone keeps getting a weapons lock – or worse, actual missile hits – on aircraft overflying an agricultural area. The PCs’ company is sent to track the culprits down and make them see the error of their ways (with extreme prejudice), whilst simultaneously trying to deal with dodgy locals and angry aliens.
Sector 37 is a system agnostic (i.e. systemless) military science fiction scenario. It provides several ways to track down the enemy, to allow flexibility for the GM and to avoid railroading the players. Resources for the GM include: maps; enemy tactics and objectives; bios and story seeds for a whole platoon of NPCs with whom the PCs can interact or the GM can utilise on this and future missions; and data on the planet and its animal and alien inhabitants. Nothing is statted up – the idea is you use your favourite system and/or slot it into a campaign in whatever setting you fancy.