Originally Posted by
Cowdisease
Epic's mistake was killing the "Big Bad", Skorge, at the end of Chapter 4. I would have rewritten that scene where Skorge lands on the ground after his ride dies, looks as the heroes fly away from him and yell at them.
He then re-emerges after you destroy the three columns at the end of Act 5, cutting the helicopter carrying the lightmass bomb in half and knocking out the Brumak you were riding, throwing Marcus and Dom on solid ground. Final boss fight with Skorge ensues, and if you win, then the Brumak mutates into Lambent Brumak, where Marcus & company Hammer of Dawn it to death.