4. After clearing the iceberg, wait until ice station is
looking for you. Type 'contact station'. Wait for message.
Exit.
+
At submarine
============

1. Talk. Decode message with computer.

2. Walk to control panel.

At control panel
================

1. There will be a report of an inversion layer at 1000 ft.
Later on you will be pinged by an enemy submarine.

2. The enemy submarine can only be destroyed using stingers
only. Harpoons cannot be used against it. You will need
two stingers to destroy it.

3. The inversion layer is somewhere around a depth of
1100 ft. When you are there, the enemy torpedos will
probably miss you.

4. Fire two or more stingers at different interval. Save
and retore until you manage to destroy the enemy submarine.
When the torpedos are heading for you, save and restore
till all of them miss. You may fire off your decoys since
this is the last battle for this game.
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