Boomer

The Boomer is a Yuri anti-ship and anti-surface submarine in Command & Conquer: Red Alert 2: Yuri's Revenge.

Overview
The Boomer was capable of firing two torpedoes at once, as well as launching ballistic missiles onto shore installations when surfaced. This, along with increased heavy armour, made it more versatile and powerful than the Soviet Typhoon submarine. An elite Boomer could fire four torpedoes and its SLBM became considerably more powerful. Due to their design, giant squid were unable to attack Boomers. However, the Boomer was rather slow and did not utilize as powerful missiles as Soviet dreadnoughts did. It was also completely helpless against aircraft, making it particularly vulnerable to Allied Ospreys, as Yuri's navy did not consist of any anti-air vessels.

The main Boomer assembly line was on a secret island in the Pacific ocean, which was destroyed by an unnamed Soviet commander.

In-game
The Boomer can easily sink any other ship in a one-on-one duel, but the destroyer and Typhoon cost half as much, and the Typhoon can cost 3/8 of the normal price with an Industrial Plant. However, being the main battle vessel of the faction, it does not require the battle lab, which the other factions' equivalents do.

When the Boomer surfaces to fire its missiles, it is incapable of defending itself, leaving it vulnerable to conventional attacks. Anti-aircraft weapons can destroy its missiles, protecting anything targeted by the Boomer. All ships equipped with sonar, such as the destroyer, can detect it and then attack it and relay its position to other units and buildings. As with other naval vessels, it is vulnerable to Navy SEALs, provided that the infantry is not killed before planting the charges. The SLBM launchers require more time to prepare and launch, but the missile itself is more durable than a dreadnought's missile or an aircraft carrier's Hornet.

When selected

 * Boomer systems operational.
 * Maintaining position and depth.
 * Deep sea vessel standing by.
 * Engines primed.
 * Air pressure stabilized.

When moving

 * Adjusting rudder.
 * Checking currents.
 * Propeller systems engaged.
 * All ahead, full!
 * Thrusting forward.

When ordered to attack on sea

 * Torpedoes armed!
 * This will be a sinker!
 * Fire!
 * Bring them down to our level!
 * Launch initiated!
 * Shark bait!

When ordered to attack on land

 * Locking missile coordinates.
 * Missiles ready for launch.
 * Guidance systems checked.
 * They'll never see it coming!
 * Yuri will be proud!
 * Let the missiles fly!

Trivia

 * The design of the Boomer submarine appears to take some inspiration from Captain Nemo's "Nautilus" from the book Twenty Thousand Leagues Under the Sea, by Jules Verne.
 * The land missile sprites used for the Boomers are actually early versions of the Dreadnought missiles recycled from the beta version of Red Alert 2.
 * "Boomer" means ballistic missile submarines in US Navy slang.

Cameos
In order: English/French/German, Korean, Chinese. Top row is standard, bottom row is veteran (unused).