Halo 3 Walkthrough

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Halo / Return		( HALO999 )
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Full Circle

You crash-land in the snowy lands of a halo. Follow the long path up and 
around and through the mountain to end up near a structure. Pods will land and
disperse some Flood. Start running to the back of the building, but go to the
right side of it. The whole time, jump and ignore all the foes. If a big 
group gets in your way, just toss a grenade in them. Keep jumping and running
and you should make it up the path with little to no damage. 

But once you make it to the walkway at the back of the tower, things get so
bad I don't even want to talk about it. You want to stop and just kill all
the bad guys before you move on, but that doesn't work because they just keep
coming. And if you do start moving it means you have to run through a swarm of
Flood and half of them have Shotguns and other killer guns. Good luck. Run 
through them and hope your friend the Arbiter can help you a bit. Just keep
jumping and hope for the best.

When you get through the first bend in the walkway, clear the enemies and rest
in the corner for a moment. You should hear that Johnson is helping you, so
make your way to the back and up a ramp. 

Now you should be on the second level. But, if you want to help yourself out,
stop and take a breather under the ramp. This should draw some of the bad guys
from the second level off and down. Then you can go up and face much less of 
them. And don't forget to grab fresh guns along the way. When you get to the
other side of the second level, take another pit stop under this ramp before
you go up.

On the third level, it's just fighting for supremecy. All you do at the top is
fight off all the Flood; yes, every single one. You'll go through a few guns
and you'll waste all your grenades, but do what you must to hang in there. 
I found that the dual-wielded Plasma Rifles will help you out the most. After 
all is clear, Johnson will join you and the door will open. Go through and 
follow your friends to the control room. Scene, and betrayal!

The Oracle becomes a boss, if you want to call it that. Just avoid his laser
and keep shooting. Eventually Johnson will fire and then you should take his
Spartan Laser. Use the laser to blast the Oracle a good three times. Scene.

The Way the World Ends

It's very appropriate that the game ends with more backtracking. Run back the
way you came and take out the Flood that appear, and you might want to take 
their Plasma Rifles. Make a sharp right turn when you get back outside and 
climb up the ice slope to get on the cliff. Follow the path all the way to a
door.

Inside there will be a big fight between Flood and robots, so let them have
at it. Keep running until you hit the the corner and rest up before you enter
a hallway filled with pregnant Flood-things. Run through it when it's somewhat
clear and hang a left. You will find a Warthog, so hop in. You will notice
that a dead Arbiter will reappear to join you.

Drive forward and make a right when you get to an open area. When you get 
through the archway you will see a red building in the distance and your
marker. Drive around the holes being made in the floor and make a right when
you get to the circular structure. Steer through the narrow path as your friend
takes care of the Flood. 

After you make a Hollywood-style leap, dodge the lasers and the holes in the
ground and make your way to the tunnel, ASAP. Inside you are reminded of a 
similar section in a past Halo game. Follow the middle path, dodge the falling
debris, and then take the left path toward the end to make another jump.

At another circular structure, go left and get through the tricky path all way
to the other side where you can jump onto the next metal pathway. Follow it 
up and then go right to stay on the metal path (don't go up and keep going 
straight). 

After another death-defying leap, you land at another round building. Go right
and do the driving thing again. Avoid the turrets and the Hunter-Flood to 
jump onto more metal flooring that leads to another tunnel. Follow the middle
path if you like and hope the robots don't blast you from the sky when you 
make your first jump. Whatever you do, don't take the lower paths, you probably
won't make it. Just stay on the higher roads.

After another leap, go right (if it's getting repetitive, I know). And around
the corner go left when you see the tower falling. More intense driving and 
then take either the high or low path, but I recommend you take the low road.
You will hear that the halo is at 90% when the target marker is in sight. Just 
push it to the end when you hear you must hurry. Take the final jump at 
full speed. You'll make it, I hope. Scene and end game, enjoy. 

Don't forget to stick around after the credits. Good stuff.

Great game, especially the Mongoose part.
 

Walkthrough