Alliance are a serie of different mods. On the Star Wars GC, you can play the civil war Empire vs Rebel era + Black Sun and soon the Republic and CIS.
This is the TIE Invader, an advanced fighter from the First Order. I made this design thinking in a fighter showed in the Episode VII art from the pre-production.
Ah, I love it when people use concept art and make something new out of it. I take it this will mainly serve as an interceptor?
More as similar as a TIE Defender. I have made a First Order Interceptor.