I love the game mass effect and I was just htinking how great mss effect space battles could be.
Three factions
Systems Alliance they are the human faction
Council A large alliance of the three major alien Powers with a combined council fleet also if possible modding in the citadel as a planet would be sweet.
Geth/Reapers a large race of synthetic cyborg robots that overthrew there masters the quarians.
The reapers are an ancient race of machines that are like massive ships.
The pirates could be replaced by the batarians a race of 4 eyed pirates and mercs.
Alliance crest

Citadel fleet with capital ship Destiny Ascension citadel itself in the background.

Citadel

Sovereign surrounded by a fleet of geth ships.

Geth ship up close more of a frigate or cruiser.
Essentialy the batarians could be the pirates with a differant name.
I feel the sins of a solar empire engine would be great to represent the mass effect universe but of course it would require the modder to have a good knowledge of mass effect and an idea of what its ships would look like because so far there wouldnt be enough info on the reapers to design a whole fleet right of the game info.
I know this is only an idea so plz dont shoot it down.
Now the batarian pirates