Suggestion: Third Faction
I've been playing a long time, on and off. A while back I dreamed about the game. (Surely a sign of addiction).
I was linking portals, and I went to use a Jarvis on Blue I planned to cut because of an errant link blocking a field. But instead of the portal turning Green, it went Red. I went back to the area view, and the Red was spreading via links to all my other portals. I tried to destroy the portals but my Bursters proved ineffective. I looked back at my inventory, and realized I was no longer Resistance... I was something else, something destructive.
And then I woke up.