Gas Cannon

General Information

Gas Cannon

The heavyweight of the gas technology family, this cannon fires solid bolts, some with HE or phosphor tips. A favourite weapon amongst experienced aquanauts.

Source: Terror From The Deep Ufopaedia

Gas Cannon
Size (h x w)	3 x 2
Weight	17
D. Threshold	20
Grip	Two-Handed
	TU Cost	Accuracy
Auto	-%	-%
Snapshot	40%	60%
Aimed	75%	90%
Sale Price	$
Research
Purchase Price $6,400
Armour Piercing
Size (h x w)	1 × 2
Weight	5
D. Threshold	50
Damage	60 Armour Piercing
Capacity	8
Sale Price	$
Research
Purchase Price $300
High Explosive
Size (h x w)	1 × 2
Weight	6
D. Threshold	50
Damage	65 High Explosive
Capacity	8
Sale Price	$
Research
Purchase Price $500
Phosphorous
Size (h x w)	1 × 2
Weight	6
D. Threshold	50
Damage	60 Incendiary
Capacity	8
Sale Price	$
Research
Purchase Price $400

Key Features
Variable Ammo
Pros	Cons
Moderate power Moderate accuracy	Heavy Bulky Slow Low Ammo

The Gas Cannon is a powerful infantry weapon that uses pressurized gas to launch powerful shells through the water or air at great speeds. It can be operated in any environment.

The primary feature of the Gas Cannon is its ability to load three different shell types: Armour Piercing, High Explosive and Phosphor. The ability to load variable ammunition types makes the Gas Cannon adaptable to various tactical situations.

The Armour Piercing shells offers nearly twice as much power as the Jet Harpoon per shell. They are ideal for sniping as well as close range combat for when collateral damage is not desirable.

The High Explosive shells turn the Gas Cannon into a miniature Torpedo Launcher, and allows the Gas Cannon to defeat virtually any alien it comes across, with some exceptions. The nature of this ammo type makes it easier to hit targets with the aid of the area effect damage, and direct hits will deal damage to under armour. Like any explosives, they can insta-kill unconscious enemies.

The Phosphor rounds can be used to provide temporary illumination or to burn terrain and enemies.

Like all heavy weapons, the Gas Cannon and ammunition is heavy and takes up a lot of space. Beyond the obvious physical differences, the Gas Cannon is identical to the Jet Harpoon in terms of single shot performance. Both weapons can be fired at the same accuracy for the same amount of times per turn for each of their firing modes. The Gas Cannon's firing modes are however 5% costlier on Time Units.

This weapon appears in Terror from the Deep. For the UFO: Enemy Unknown equivalent, refer to the Heavy Cannon.

As an alternative for underwater-only combat, the Gas Cannon has an automatic fire counterpart: The Hydro-Jet Cannon

Notes

• The Gas Cannon is the only weapon that can deliberately fire phosphor rounds on land based missions. In addition to that, phosphor rounds work better on land due to better environmental circumstances (i.e. more fuel and tile burn time).
• It is also the only source of reliable explosive damage on land, other than grenades.

See Also

• Heavy Cannon vs Gas Cannon
• Weapons
• Hydro-Jet Cannon
• Torpedo Launcher