Is there a setting for Brightness or Gamma?

I’ve been playing the Halo 2 single player and im stuck on Mission 15 (Gravemind). Its just too dark, I can’t see the enemies. Is there a Gamma / Brightness setting? I can’t seem to find it.

I played a Match Making game on Gemini, my goodness you would have thought my tv had Limo Tint film on it. Terrible.

Gemini was way too dark for me. I went looking for the TV remote to turn up the brightness. Being on the Red team, the Blue team all but disappeared in the shadows.