Richter

 is an IMC boss in Titanfall 2.

Summary
Richter is the third boss encounter in Titanfall 2's campaign in the mission "The Beacon". His Titan is a Tone class and he is the only boss using a variant of Nuke Ejection. It's not exactly Nuke Ejection, as his Titan detonates, but he does not eject.

Richter is not "strictly" an IMC pilot, and is instead a pilot for hire.