why should ALL FPS games feature the same systems? like you say, almost all shooters feature perks style progression these days, why isn't that enough?
Given how it's so widespread, and all of the most popular shooters have it, it's obviously what people want. If you don't like it that's totally valid, but that's obviously the direction things are going in. It doesn't necessarily have to be perks, but these days you really need to have some sort of overall character investment. Reach had it, but it wasn't very good for a variety of reasons. I'm not making an argument for or against since I don't feel that strongly about it either way, but there's just no way you can put out a AAA FPS that does not have some sort of constant leveling/progression/etc. Part of the reason CoD, Battlefield, etc are successful is that you are always leveling up and unlocking new things; it makes you feel like you are progressing forward. In the old days I knew people who wouldn't play FPS games for very long (Halo included) because they were terrible at them and they would just get worked horribly almost every game, and there was no sense of progression of them getting anywhere outside of going 4 and 20 every game. But then I know those same people who are still terrible but enjoy playing something like CoD or Battlefield because even if they suck outside of the occasional good game, they still always feel like they're progressing towards a goal and still leveling up and feeling like they have some success in that regard.
It doesn't necessarily have to be perks or weapon unlocks, but there has to be SOMETHING like that I think for a FPS to be really successful long-term, and Battlefield, CoD, and others pretty much bear that out. I think Reach could have pulled it off successful with having progression without actual game-changing unlocks but honestly I feel that they fucked it up for a variety of reasons and I don't want to derail. In any case I really think people should wait to see specifically what sort of perks/unlocks they're talking about here, as well as if they will be completely separated in Matchmaking before getting too upset, I know it's Halo and people are super uptight, but let's at least give them a chance.