The Legios Mod
From the author...
"Legios offers all dedicated players of GSB a new race with a lot of new content. The Legios scenarios are fast, brutal and gratuitous!"
Features of version 1.00:
 10 ship models (3 Cruiser, 4 Frigates, 3 Fighter)
 3 challenging scenarios
 a ton of new weapons (models + changed stats)
 new designed standart modules (models + changed stats)
 experimental tactical modules
 note: the power generators modules were switched to 'Engine' because 'Others' was just overloaded
More details in the forum thread here: http://positech.co.uk/forums/phpBB3/viewtopic.php?f=23&t=4021