The battle in the "Breaking Benjamin Room": surrounded at all sides, a small army against one or two men, everyone shooting at you, and Breaking Benjamin playing in the background top it all off.

Driving through an exploding spaceship, jumping out of tunnels hundreds of feet in the air, and crushing enemies under your wheels. And to top it off you make it to a ship with only seconds to spare, watching as Halo explodes behind you.

From the novel "The Cole Protocol." While running for cover, the surrounded Gray Team Spartan Adriana finds a weapons drop container. Hoping for even something simple, like a pistol, she dives for the container and rips it open to reveal...

...a Mongoose ATV.

Undeterred, Adriana then picks up the Mongoose with both hands and uses it as both a shield and weapon to get to safety. Oh, yes.

The (final?) climax where you have to fight two massive scarab walkers while The Covenant and Humans are constantly fighting both in the air and on the ground right next to you as you rip through Covenant forces, all of this punctuated beautifully by the massive blue explosions of the scarabs.

On a homage to the first game. Driving across a collapsing, incomplete ring world which is about to kill all life, which is exploding due to shaking itself apart, as you run over tons of enemies, with awesome music in the backround.

And then ramping into the cargo bay of your ship to escape.