
FIRE ONE!

Introduction

The horizon is filled with enemy battleships, destroyers, PT boats and more, all steaming 
toward your home port. Your fleet is the only thing that stands between them and their final 
destination. This isn't any fleet you're facing, it's their biggest, commanded by their most 
experienced admiral.
You have the ships and fire power to match them boat for boat, and you're commanding the 
fastest submarine on or under the seven seas. However, it's going to take more than firepower 
to win this battle, your battle plan better be right on target.
This could be the biggest battle of the pacific campaign, for the loser it will be the last!


Getting ready to play

Atari 800:
Press [START] to start or to quit the game.
To toggle between Ensign (easy) & Admiral (hard) skill level, press the [OPTION] key.
To select playing time, press the [SELECT] key one time for each play period 
(approximately four minutes each).
 
C64:
Press [F1] to start and [F7] to quit the game.
To toggle between Ensign (easy) & Admiral (hard) skill level, press the [F5] key.
To select playing time, press the [F3] key one time for each play period (approximately four 
minutes each).
 
To pause the game at any time press the [P] key, to continue play press any other key.


Objective

Your mission is to destroy the enemy fleet and protect your home port. Fire your torpedoes 
and score points by hitting or sinking an enemy ship. Chalk up additional points every time 
you win a battle, but remember, it takes more than winning one battle to win a war. Now, it is 
ZERO HOUR. Secure the hatch and prepare to dive. The enemy vessels are approaching. 


Controls

Use your joystick to control both the direction and speed of your submarine. To position 
your submarine under an enemy ship to the right of you, push your joystick to the right. To 
bring your sub to the surface, push your joystick forward. To submerge, pull back on your 
joystick. Press your fire button to launch torpedoes. When aiming, be sure to consider your 
speed and direction.
 
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Playing the Game

Both fleets consist of 16 vessels and a submarine.
 
Sonar Scan: At the top of your screen, you will see the sonar scan. The sonar scan gives you 
a long range view of the enemy fleet. On sonar, the enemy ships are red, and your fleet is 
white. In the top right corner of the sonar scan, you will see "Enemy Sub Status". Each time 
you hit the enemy sub, a bar graph will register the damage. When the bar becomes 
completely red, it means the sub has been sunk you win the battle! In the lower right 
corner, you will find "Your Sub Status". This damage indicator warns you when your sub is 
close to being sunk. Below the sonar scan, you will see the torpedo tubes. Your sub is 
equipped with eight powerful torpedoes. Each time you launch a torpedo, a tube will empty. 
If you fire them all, there will be a short reloading time.
 
Periscope View: The lower part of your screen is your periscope view. Your periscope view 
has less range than the sonar scan but enemy ships can be seen more clearly. The enemy ships 
are black. You can see through your periscope only when you're on the surface. Once you 
submerge, you lose surface view and this portion of the screen blacks out. At the bottom of 
the screen, you will see an arrow that indicates the speed and direction of your submarine. 
The arrow points in the direction you are moving, and grows longer as you increase your 
speed.
 
Surface Play: When you are on the surface, enemy ships appear larger and are easier to hit. 
In addition, when you are above the water, your Tracking Computer is in operation. You will 
see an arrow above the enemy ship, indicating that you are in firing range. Fire immediately to 
hit or sink that ship! Surface warfare can be dangerous, the enemy sub can see you and will 
attack!
 
Submerged Play: Remember, in submerged play, the periscope view is not operational and 
you must rely on your sonar scan. Sonar lets you locate the enemy without being seen. Sneak 
under an enemy vessel and launch a surprise attack! On sonar, you can view all enemy ships, 
but they appear quite small. To see the enemy at closer range, go to the surface. Then it's up 
periscope and torpedoes away! If the enemy returns fire, submerge again and disappear from 
view.
 

Scoring

You're awarded points for hitting and sinking enemy ships. Depending on the ship, you 
receive from 1 to 30 points for each hit. Hit an oil tanker and score 4 points hit the enemy 
sub and get 30 points! The number of hits needed to sink a ship will vary depending upon its 
size. However, one DEAD CENTER hit on any ship will sink it immediately. If you sink all 
16 enemy ships, or the enemy sub, you win a battle. You receive 20 points for winning the 
battle plus 10 times the total number of ships sunk by both you and the enemy. (if you've 
sunk 16 ships and the enemy has sunk 4, that's 20 ships x 10 + 20 points = 220 points in all). 
The computer will keep track of your battle scores. At the end of each battle your score is 
added to your point total. The fleet with the most points is the winner when time runs out.
 
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Helpful Hints

- When aiming at an enemy ship, remember to compensate for you sub's speed and direction. 
- Fire more than one torpedo at a time. 
- When your sub is damaged by enemy fire, it loses speed. Your tracking computer may 
  also be knocked out. Dive underwater where you can't be seen or hit! 
- Keep an eye on the time clock. It will tell you how much time is left for you to battle 
  the enemy and defend your port. 

Fire One! (C) 1983 Exidy / Epyx 
