Full Circle
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It's the Arbiter and yourself in a snowy wasteland. Nice change of scenery.
Walk forward into the chilly tunnel.

Return to the main path and go through the tunnel until you reach some large
support beams. Stop. Time to search for a Terminal.

After finding the Terminal, head back to the exit of the cave. Flood pods will
drop from the sky and release more baddies. Stick with the Arbiter and use
your Assault Rifle to tear through the Flood. You can use your Rocket Launcher
to disperse large amounts of enemies at once.

Move around the massive piece of architecture to the right side. Slowly climb
up the hill as you destroy the Flood coming down at you. Once at the top of
the hill, make your way onto the side of the building. I found the SMG highly
effective agains the Flood, so try finding one.

Sentinels will help out with the Flood infestation, so you can essentially
leave it up to them and the Arbiter. But that's not how some people roll. Walk
through the hall leading to the other side of the building. You have plenty of
help: the Arbiter, Sentinals, and random soldiers toting Spartan Lasers on the
side of the mountains. Still, it isn't a walk in the park. Use your Rocket
Launcher when two or more Flood are standing together and pick apart the
loners with your SMG.

Walk up the ramp at the end to reach the second floor. It's more or less the
same exact thing: kill Flood, run to the other side of the building, then kill
more to reach a ramp. Head up to the third floor.

Guilty Spark will try and open the door leading to the control room, so we
will have to hold our ground until the door can be opened. Flood will appear
here in waves. Use the two Auto Turrets in front of the door and go down the
ramp into the small room for an Invincibility.

It isn't too difficult. Try to find a Spiker, since like Brute Shots, one
melee hit from one can kill any Flood in one hit. Your Auto Turrets and
Sentinels will help out a bunch as well.

Once the Flood are dealt with, go through the opened door. Follow the halls to
reach the control room. 343 Guilty Spark will flip out after realizing that we
are here to destroy The Ark. He shoots Johnson and focuses on the Arbiter and
the Chief. Deja vu? Almost.

We have to fight Guilty Spark, just like in the first game. You will not be
able to hurt him for a few moments. Simply avoid his red eye beam of death. If
you get too close, Guilty Spark will use a force field to push you back. After
a minute or so, Johnson will fire at Guilty Spark with his Spartan Laser. Run
up to Johnson and take his Spartan Laser as he dies. Aw sad.

Now we can finally hurt Guilty Spark. Again, his sole attack is a red laser
beam. Walk to the left or right to avoid it, then attack with your Spartan
Laser. Three hits is all it takes to finally destroy Guilty Spark. I have been
waiting for this moment for a long time.

But wait, Johnson is not dead! He gives Chief Cortana and tells him to use her
for the firing process. Chief lets Cortana set everything up. Halo is now
activated. This baby is about to blow.


The Way the World Ends
----------------------
Exit the control room to encounter some Flood. Kill them and steal a Plasma
Rifle, then exit the building. Walk up the icy hill as you exit the building
to find some Flood along the mountainside. Quickly demolish them and move
across the cliffside. Yeah, the Sentinels don't like us anymore since we
activated Halo. Destroy them and enter the hallway at the end.

The Sentinels will be battling against the Flood. Let them fight. Run through
the chaos into the hallway, then speed past the Carrier Forms. Follow the
arrow to reach Johnson's warthog. Hop in.

Speed down the mountain and take the lower path at the fork. Just a neat note:
if you take a left at the base of the mountain, you can find a Mongoose. Don't
know why it's there. Maybe for co-op? You can use the Mongoose to escape if
you wish, but it is much harder. I have done is myself, but stick to the
Warthog.

Follow the arrow to reach a large metal platform. The floorboards will
randomly explode, so try your best to avoid them while still going as fast as
you can. The same floorboards are destroyed every time in each playthrough, so
you can essentially memorize the pattern if you die too much.

Once you reach a circular base, drive around the perimeter as you ignore the
Flood and Sentinals. Drive through the next destructible platform to enter a
large tunnel. Drive on through and follow the arrow to your next destination.
It's pretty much the same stuff over and over again.

After crossing through the second Flood-infested tunnel, things get really
nasty. The ground starts blowing up faster and more frequently. Eventually, a
giant pillar will come smashing into the floor right in front of you. Quickly
bear to the left to avoid it. Drive under the horde of Sentinals and you will
soon come to the frigate. Drive off of the ramp right into the hangar to end
the level... and the game!

That's it! Sit through the ending scene and the credits. I hope this guide has
helped you out in any way, shape, or form.

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