General:
This is really the most difficulty and hardest map of the third episode.
It was a very wonderful world - until the Skaarj convulsed the fundaments.
All over there are vulcanos firing suddenly out of the ground.
There are many "traps" - places where you think you want to go to, but which you never can leave.
One of the vulcanos is right near where you were beamed into this world, so watch out not to stay there too long.
Not very far of you there's a small steel hut. It's the entry into the underworld.
After the jumps down the turning platforms you come into a huge stacked hall with breakable glass floors.
Watch out the many Skaarjs and respawning Skaarj Gunners.
The Eightball at second-last floor is needed to break the last glass, so don't waste its ammo.
Touch the two panels and the button lock will open.
Push the button and enter the now starting ship by jumping on it when it's already down into the lava hole.
Enjoy the flight and leave the ship immediately after you are outside the rocks.
Go some steps into the direction of the huge steal thing in the lava - it's a bridge which will unfold then.
Don't cross the bridge, but now the lift to the ending door is enabled.
To open this door ring the bell inside the hut (fire at it).
Tips:
Enable dodging (in your controls menu) to do the jumps down the turning platforms.
Still you will loose health on your way down, but not more than 22.
To kill the behemoths jump at the ledge between the last two lava pools holding your walk (duck) key,
strafing left and right and firing with the stinger at the behemoths.
The Skaarjs inside the stacked hall are easily to kill when you shoot with the automag.
Hide yourself back the higher stack so that you just can see their head.
Once you got an asbestos suit: don't be scared too much by the lava worm's and sulfur bag's projectiles!
Secrets:
There are plenty of secrects all over the map.
Most are reachable by the hot air streams only which usually blow between two trees across the lava.
To see the place of the air streams hit TAB and type "set ambientsound bhidden false" (or 0, default ist true / 1).
Unfortunately your frame rate influences the ability of air stream travelling (I dunno why).
So you may increase or lower your resolution and/or type "rmode 6" (default 5) to get more or less frames per second.
At top of the highest rock there is a belt, an asbestos suit and jump boots.
But be careful jumping down: Between the huge rock and that one where the broken nali hut is,
the lava is too flat to dive - even with the boots you will loose some health.
Goodies inside the broken nali hut, nearby: WeaponPowerUp, Eightball, Minigun.
Near the Minigun is the start point of the next air stream to where the Rifle is.
When you fall into lava before you reached the Rifle then swim around the place.
At the back side there is a small place where the shore is plain enough to climb up the land.
The next air stream connects the tree near Rifle with the one where you started.
In the last tree's top there's a Shield Belt.
The Flak at top inside the steel hut is reachable in multiplayer or when you got jump boots (e.g. from top of the highest rock).
When you leave the red marble rock by ship then don't jump off immediately.
Wait till the ship is near to the red marble rock again and then jump on it (you don't need boots for that, but it's not easy).
Pickup Superhealth, Power Shield, Asbestos Suit and Jump Boots.
With that boots you may get the Belt upon the bell hut too.
