I think we've all seen too many games where the story is just tacked on to a cool gameplay idea. We're using a combination of mission goals, cinematics, custom in-engine animations, dialogue and recurring characters to create a compelling story in an original, detailed world. In addition to the vehicles you've already seen we've got a stationary Plasma Cannon the Covenant will wheel onto the battlefield that you'll be able to climb into and use against them. There's also the human and Covenant drop ships that we'll hook up next week. There's more, but I can't talk about that just yet.
Every weapon has something that makes it unique and fun to use in addition to being well-balanced.
My favorite weapon is the Human fragmentation grenade. We like the frag grenades so much they have their own button so you don't have to switch weapons to back-peddle into cover while blowing exploding kisses at your friends. The exact number is something we want to keep a secret until you play the game. But because Halo focuses on tactical combat, we've tried to create different types of enemies that work well in different combinations. So the number and types of enemies should influence how you approach an encounter and choose which weapons to use.