So I just hopped on Halo: Reach in order to get the daily challenge for beating a mission with the “Thunderstorm” skull on. Despite playing the game on fully-functioning actual Xbox 360 hardware, with a mint disc, solo, the frame rate during that mission - Winter Contingency - was absolutely awful as it would go from around 30-15fps constantly during combat.
Am I just losing my mind? Because I’ve been playing the game since launch and the frequency of the drops has never been that high before.