: Here are my current times (best times are all co-op):
: https://www.halowaypoint.com/en-us/games/halo-the-master-chief-collection/xbox-one/service-records/players/fuchsdh

: If I get Keyes and AOTCR down to 10 minutes each that's sub 3 hours. As is,
: while I could certainly do better time-wise on them then they are now, and
: could shave three or four minutes off my other times, the only other
: serious timeskip would be the very difficult grenade jump up the hangar in
: T&R or things like Flood bumps on the Library, which are much more
: difficult to do and practice IMO (since they aren't right at the beginning
: of a level.)

Also, it's worth noting that I'm doing most of the "normal" non-tricky skips where possible—I jump down into the coolant instead of backtracking, I don't go to the exploding elevator on 343GS (unless I get turned around badly, which still happens to me), I try and run down the side of the control room on Two Betrayals to skip enemies and push a Ghost through the broken doors to run past the final encounter, I grab the Banshee on AOTCR, I go to security first on Silent Cartographer. I probably haven't played through AOTCR and Two Betrayals "properly" in years at this point—I always skip the end fights.