So, to make a game better, there should be more flashy customization and options? A game like Quake with 6 total weapons and no abilities must be boring because you're doing the same thing over and over again. I don't want to seem too frank, but the best gameplay is the simplest. If it plays fun then the customizations are only a bonus.

In my opinion, this is where the mmo and rpg elements kick in.

New guns, upgrading guns, upgrading or swapping supers, different enemies in different areas, raids, public events, strikes, etc Nothing to worry about in terms of gameplay getting stale, we're in good hands.

Perhaps there will be more abilities unlockable through leveling. We only get snippets of what's already been completed, after all. The game isn't done yet. Perhaps it will be a matter of completing challenges in ways you desire. We know nothing of what a strike or raid is right now aside from implications. Gear that we desire can be attained over time, and we can look forward to getting our hands on it. Multiplayer options abound to keep us occupied. Adventure may be a prime mover for many gamers. If adventure isn't your deal, maybe you need a different game. Halo wasn't about adventure. It was more about the struggle from point A to point B. It was tactics and skill. You'll still have that here, but where you CAN go is now going to have more importance than where you MUST go. I look forward to beautiful vistas at sunset on whichever planet that may be so.

Multiple abilities that you choose 2 from. They've only shown a few per class to keep as much a surprise as they can. Also different guns fire differently and different enemies fight differently so I imagine it'll be entertaining for a long time. AND on top of all that, there are 3 classes to choose from so you'll have a different experience with each one.