This article is considered accurate for the current version (1.58) of the game.
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Initially intended to provide a mobile platform for cumbersome field weapons, the T13 “Deioneus” Rocket Battery is a lightweight tankette fitted with a nine-barrelled rocket artillery. This unique battery is configured for incendiary rockets to be launched at range while maintaining high maneuverability between deployments.
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— In-game description
The T13 “Deioneus” Rocket Battery (also known as a Rocket Tankette, or Rockette) is a Colonial Rocket Artillery Tankette. It is equipped with a Rocket Battery for 4C-Fire Rockets.
The T13 “Deioneus” Rocket Battery has 1350 HP and is disabled under 30% health. It has "Heavy Armor" resistance: it can soak small arms fire, shrapnel, and 12.7mm machine guns, and it is immune to Flamethrowers. But it won't last long when faced with heavy explosives or anti-tank weaponry. It has subsystems that have a chance to be disabled by heavy explosives and anti-tank weaponry if hit specifically: Tracks: 30% (Anti-Tank Mines always disable them). It has Tank Armor. With it, in best case scenario, penetrating projectiles only have a 55% chance of penetrating and doing damage. That chance goes up quickly if the armor is worn or if it is shot from up close, or on the side or rear from a direct angle, or with ammo that has penetration bonuses. It takes 150 Basic Materials to fully repair it from 1% to 100% health with a Hammer. Its health, subsystems, and Tank Armor can be instantly repaired at a Garage for 100 Basic Materials.
Unlike most artillery emplacements and vehicles, the T13 “Deioneus” Rocket Battery is capable of being operated by one crew member, who can act as both the Driver and Gunner. The only limitation to this strategy is that the loading of all the rockets takes twice as long compared to doing it with two players.
Although its mobile, it should follow standard artillery defensive precautions, and set up a defensive perimeter around it to protect it from enemy infantry, vehicles, or counter-artillery. (unless its being used in hit-and-run tactics)
Due to its ammunition, it relies more on their ability to set targets ablaze and catching them on fire, rather than High Explosive damage.
Like other artillery shells, the fire rockets are more inaccurate at longer range and their trajectory are affected by Wind.
Rocket Artillery Strategy
All equipment that uses rockets excel at burst damage, compared to regular 120mm artillery, which are suited for sustained barrages. Due to the rocket's relatively low damage and their high dispersion, they are most effective when attacking in groups, as the large volume of rockets increases the chances of hitting targets. Additionally, every rocket has a chance of setting their target on fire, preventing them from being repaired (though the 4C-Fire Rockets have a higher chance of doing this).
Nearly all rocket vehicles can be reloaded prior to their actual deployment, meaning it is possible to do hit-and-run tactics with them. This can be done by loading up the vehicle with rockets, driving to the location, fire all of them, and evacuate before any enemy QRF forces arrive.
Tips
Like all artillery equipment, rockets can be quickly submitted into them without accessing their inventory
While this can be done for all vehicles, it should only be done if they can carry/use large items
Equip the rocket and walk up to the vehicle
Submit the rocket into the vehicle - pressV
Trivia
The T13 “Deioneus” Rocket Battery is the first Colonial vehicle to use 4C-Fire Rockets
It was briefly possible for both sides to produce them, however that was shortly removed after War 96 ended (the first war when 'Inferno' released).
They were made able producible by both factions in Update 1.53, as both sides now had vehicles that used them.
The name “Deioneus” is used by many individuals in Greek mythology - one of whom was pushed into a bed of coals by Ixion.
Gallery
The T13 "Deioneus" Tankette from the front
The T13 "Deioneus" Tankette from the back
A T13 "Deioneus" Tankette with all rocket tubes loaded
The T13 "Deioneus" Tankette introduced in Update 1.53