These are the First Strike player models in FBX and 3DS format now available for non-commercial use. The only requirement is to credit the First Strike development team. Thanks to MichaelEga for his efforts in porting the models.
First Strike has a large variety of player models. By releasing the models in a format that can be easily imported into current game engines and modeling tools, I hope to encourage development of more GCW era fan games. MichealEga has previously worked with a GCW era mod for Freespace 2 and is now porting over the First Strike models. GCW Freespace 2 models: Indiedb.com
I have long hopped to be able to port First Strike over to a newer game engine and the clean up and model conversion will be a great first step.