Prometheus

From FreeSpace Wiki

Prometheus can mean one of the following things:

GTW Prometheus -- The original Prometheus cannon, from FreeSpace 1. Sometimes called Prometheus O.

GTW Prometheus R -- A weaker, retrofit version of the Prometheus cannon.

GTW Prometheus S -- A significantly upgraded cannon over the Prometheus R, supposedly designed to mimic the Prometheus O, though its statistics are noticeably different.