Hello.
I've been playing Bungie games since Halo 2. Did the whole MLG thing for Halo 2, played 3, Reach, 4... and have no plans on playing 5.
Let me break down what I think Bungie has created, and why there is so much backlash, disappointment, and confusion.
1) Expectations. People were expecting a story game, maybe a fantasy single-player game with epic build-ups, character development, and cut scenes. I, for one, felt the Reef will play a deeper role later on, and feels kinda tacked on with this first batch of content. People are accustomed to epic single player experiences, expecting a VAST amount of playspace with tons of new content, not retreads. I will cover this point below.
2) Multiplayer. I loved Reach more than any other Halo game. Destiny is an evolution of Reach, and based on what I've seen on NeoGAF, most people don't like Reach. I think there is a select few that states it had the "worst campaign" "unbalanced multiplayer" "bloom" and so on. I will cover this below.
3) Features. Destiny is getting picked on for not having Forge, Custom gametypes, Offline play, and voice chat in the Tower and Open World. I think this is a poor request, and I'll cover this below.
A) The world. Destiny is not meant to be linear. Each mission is episodic, like watching a weekly television sci-fi series. The missions are not supposed to build on each other like people expect, and it's supposed to be designed to jump in and out at any time. This is Epic. For people who wanted a "story" the lore is there, but you cannot focus a story on one character in a Destiny universe, where teamwork and multiple guardians are paramount. The game is designed for CHALLENGES, just like Reach. Once you beat Reach, the campaign, there were daily and weekly challenges, just as Destiny has done, with modifiers, rewards(Cr) and the ability to further rank up, get new armor, and improve your guy.
The game is PVP - based, not an MMO or open world. Saying Destiny is an MMO is like calling Reach an MMO. Destiny is FIREFIGHT, CAMPAIGN, and PVP, all wrapped up into one seamless package. It's truly amazing what they are doing here.
Reach's endgame was playing tons of matchmaking with new playlists, modes, DLC, and earning new armor and commendations. Destiny expands on that ten fold by allowing you to customize your Guardian to a great extent, have awesome stacking abilities that work in any game environment, and again, have a seamless play experience.
Now, for the negative? I disliked the Reef cutscenes. I don't think they added ANYTHING to the story, and felt very forced. I'd have preferred playable space in the Reef, then a cutscene.
B) Multiplayer. Okay, guys. If you hate Reach, you'll hate Destiny. That's all I'm going to say. Currently I'm using a lvl 24 Warlock. Let me tell you some of the attributes I have unlocked. Sticky Grenades, with a faster cooldown, meaning I get more grenades more often. Angel of Light, which allows me to float while ADSing, allowing for extremely tactical jump over your head maneuvers. Revive. I can bring myself back to life when acitvating my Radiant Light, and then run around like a mad man with almost zero 'nade cooldown, torch punches, and stick people left and right. I have customized my guy to throw up to 6-7 grenades per Super. This is awesome.
You think the gameplay is unbalanced? This is probably the most balanced vanilla game I have played. If you're getting killed by shotguns or fusion rifle guys, switch to long-range weapons and pick them off. Titan got a bubble shield? Ignore him. Don't engage. Blade Dancer? Get up into the air, they can't hurt you. You have a game where teamwork builds points, amazing map designs, and they actually balanced out having a custom loadout through using ammo drops. That's an achievement.
C) Features. Okay, please explain to me why you would expect custom games, or forge in Destiny? Custom games - How? They wouldn't allow you to earn XP, weapons, armor, or stats. Why are they necessary? I can understand people wanting to play with and against friends, and maybe they will add the feature later on, but the reality is that the more I played Reach, the less custom games I played. Forge? Screw that. Awful looking set pieces with user created content that makes me wish Bungie just had more DLC. I don't see any point in it. Splitscreen I can bow to, that's an oversight if true.
Let me finish this with a quick rant about those who think 343 will create a better game with Halo 5, or that Bungie did a shitty job on Destiny. Time will tell. I know for a fact that I'm playing this game for a long, long time. Making new characters, doing Raids, and playing the Strike playlists with my buddies. The same way that Reach had daily and weekly challenges and amazing PVP, Destiny will provide the same experience.
I'm biased against 343 simply for the reason that they butchered Reach, eliminated its DLC content, removed playlists and adding the Title Update crap that divided the play experience. I do not trust them as a developer one bit, and I despise the fact that they are making a living off Bungie's past work. Halo 5 will hopefully be better than Halo 4, which I consider the worst Halo game in the series.
Again, this is the evolution of Halo Reach for me. Not an MMO, not a story game. It's amazing PVP and PVE with friends, Challenges, Firefighting and Objective VS.
It is AMAZING.