I'm not going to get into an argument over this because you have your opinion and you are entitled to it and I have no right to say you are wrong so I'm just going to say something that was bugging me when I read through that.
Halo is in every respect a fast paced game, you can kill people in 3 shots and the average confrontation lasts less than 5 seconds. With that in mind I see no reason why Sprint can't be in the game? I think it is a nice change.
Where my problem comes in is with loadouts, I think Sprint is fine if everyone else has it, but when you start making people spawn unequal that is when I start not liking it. That is my problem with Reach, Halo fills a specific role in my collection of games, and that is is a entirely skill based shooter, everyone is equal, everyone spawns the same, when it leaves this then it doesn't really have a purpose for me.
I can't fully explain myself on here without writing you a 2 page essay. This is as simple as I can really make my opinion so if it sounds over simplistic, that is because it is.