In the event of an on board fire, overhead and deck fire suppression systems activate. These systems activate spraying a liquid fire extinguishing agent that can emulsify flammable liquids and cools super heated materials quicker than water or ordinary foam. The liquid is designed to be applied to materials, or to skin as it is designed to be human safe. It works via soaking into the medium preventing the transfer of heat to the medium or in the case of hard materials it sits atop it preventing further spreading of fire. This is one of the first lines of defense in preventing further spreading of flames of up to 2,000 degrees fahrenheit.

Should the first line of fire suppression and control fail, the second line is activated to provide further support. Wall, floor and ceiling mounted systems (the ceiling and floor systems also contain the liquid suppressant) activate and begin to spray a combination of liquid and a specially designed water-insoluble/swellable polymer gel. The polymer gel soaks up hundreds of times its weight in water creating millions of tiny drops of water surrounded by and protected by a polymer shell. This resulting mass is fired, spraying the area with millions of tiny versions of itself, stacked atop each other forming a thermal blanket effect. The fire in question will then have to burn off each resulting layer of the mass in order to bypass it, however due to the high specific heat of water it requires more energy to raise the temperature of water then a normal air-filled based foam. They leech the heat away, slowing the fires advance or outright suppressing it should volleys of these masses strike at the fire's heart. The gel itself can provide thermal protection from fire for extended periods and up to 3,600 degrees fahrenheit of heat.

To properly contain the fire, ventilation systems begin to pump in a blend of inert atmospheric gases. These gases work by suffocating the fire from its oxygen rich environment by lowering the oxygen content below the point of combustion. The area must be sealed off however due to safety reasons. Once the fire is extinguished the gases are vented out of the area and provided the space is intact rescue & repair teams will be dispatched. Should this last line of defense fail however, there is always the option of venting all atmosphere from the sealed area.

These reinforced blast doors are made of strong, robust materials to ensure protection against thermal, vacuum and or enemy fire. Made of external layers of titanium with a laminate of buckypaper on both sides to better help absorb incoming projectile fire, immense amounts of heat and energy with the stalwart protection of titanium to provide the second line of defense. Tungsten makes up the final layer, being sandwiched between the two external titanium sheets and providing some radiological protection.