Full Thrust in the Universe of Renegade Legion's Leviathan

The following are rules to play in the Renegade Legion Universe using variations of FT rules.

Turn Sequence

The turn sequence is as FT:FB, with the provision that all damage is considered simultaneous i.e. doesn't take effect until the end of the turn.

Movement

Leviathans use EFSB vector movement. A small modification: If a ship has a thrust of 2, it can spend 2 points main thrust, and 2 points to rotate or push, in contrast to EFSB, which has half available. (Thus, Leviathans have the equivalent of the Centauri 'Gravitmetric Drive')

It costs 1 point to 'roll ship.'

FTL

Leviathans, in order to go FTL, must travel in a straight line for at least 5 turns, with a minimum speed of 30" a turn, at the moment of translation. Violating these parameters creates a misjump, as per Leviathan rules.

Energy Allocation

Leviathans have three blocks of 'energy' to allocate. A block of energy will run one of shields, thrust, starboard broadside, port broadside, or the spinal mount.

Leviathan ship displays will have three 'icons' to represent the power generation and distribution system. As these 'icons' are hit, a block of power is lost. Whenever a power system fails a threshold check, roll another 2d6. On a twelve, the power reactor detonates, taking the ship with it. See 'Overdamage', below.

Thrust can be overcharged, up to using all three blocks of power. The each block gives the unit its base thrust e.g. a unit with a base thrust of two gets thrust 2 to spend with one block, thrust 4 to spend with two blocks, and thrust 6 to spend with three blocks. This is the only system that can be overcharged.

Directional Armour

Leviathan ships, unlike FT ships, have armour 'facings.' Each facing is considered independent for armour purposes, and armour must be purchased separately for each facing. There are six facings, equal to the six arcs.

Combat Systems

Leviathan weapon systems all have independent fire controls i.e. they don't use the global firecon. Their targets are assigned through the use of a Combat Information Centre.

If the CIC is destroyed, the bay weapons can continue to fire at any target, but the target is treating as having screens one level higher then present. If a ship already level two screens, then treat as if the ship has level three screens, as per Full Thrust. (Hit only on a 6)

All Leviathan bay weapons can be used against fighters. Treat them just like class 1 batteries being used in anti-fighter/missile mode.

Batteries re-roll on a 6. The re-roll die is treated as if the screens applied to that die as well.

Fighters

Leviathan fighters don't have combat endurance. (Well, they do, but it's measured on the order of days.) Fighter Squadrons move as if they are burning combat endurance for movement, first moving 12", letting ships move, then moving another 12". Fighters have an attack range of 3". Fast fighters have move 18" and 12".

Fighters are fought as per EFSB, for rules such as screens, and the launching/landing mechanism. On the turn that a ship is performing fighter operations, it may not burn any thrust.

Small Craft

Small Craft are treated as fighters, with a movement of 6" and 6". They require two hits to kill, attack enemy ships like attack fighters, and for enemy fighters they score hits only on a 6, with no re-roll.

Launch and Landing

Ships can launch half their entire fighter complement in one turn, and land one quarter. Special rules may apply.

Weapon Modifications:

Arcs

The FP/AP and FS/AS arcs are combined into a P(ort) arc and S(tarboard) arc, covering 120 degrees.

Bay Mounted Lasers

The common and main weapon of the Leviathan is the bay mounted laser weapon. This can be simulated using the standard battery rules. However, there are some changes.

Batteries now have two ratings. The first rating represents the number of dice to be thrown, and the second rating represents the range of the weapon (in range bands.) A range band is 5" across. Thus, a typical Class-C (or Class-1 battery from Fleet Book) would be rated approximately 1/2.4. A Class A (or Class-3 battery from Fleet Book) would be rated 3/7.2, etc.

This also means you can get odd weapons like 5/1, or 1/10, or things like that.

After each weapon is a small display that tells you how many dice to roll in each range band. (5/4/3/1) means roll five dice 0-5", four dice 5-10", three dice 10-15", etc.

Damage is determined just like battery weapons in FT, with rerolls.

Missiles

Missiles in Leviathan are represented by the Salvo Missile Launcher. Same basic operation as per Fleet Book, but with some changes. First, the launch point is nominated AFTER movement. Second, roll the indicated die to determine how many missiles hit, and then roll a damage die for each missile, which may be different from a d6.

SMLs have an attack range of 3" diameter. EVERY target in that attack range, friend or foe, is attacked by the missiles, including fighter groups. For fighters, roll the number of missiles, roll the damage, and divide by two; that is the number of fighters killed.

Finally, screens do have some effect on the missiles, subtracting their level from each damage die.

All other rules as per standard. 360 degree radius of fire.

Spinal Mounts

Leviathans have an enormous railgun mounted on the centreline of the ship, called a spinal mount. This rail gun forms the main structural frame of the ship, and is one of its more potent weapons.

Spinal Mounts are represented by enhanced pulse torpedoes. Roll a d6 to hit. However, damage may be determined by different size dice, and each torpedo will have a different set of range bands. This information will be on each sheet. Note that we're using the EPT damage model as presented in Fleet book; so half the damage of a Spinal Mount will be taken on armour, half on internal hull.

Spinal Mounts may only fire forward, in the forward arc.

PDAFs

PDAFs have a range of 3", and can engage any missile/fighter target in that range, even if they aren't attacking that target. Otherwise, they function normally.

Core Systems

Leviathans have two bridges, a main and auxilary. Both bridges have to be taken off line before a bridge hit takes effect, as per FB.

Power Systems are described above in 'power allocation.' There is also the 'Life Support' Icon, as per FT/FB, though it takes two failed checks before Life Support fails.

Overdamage and Detonation

When a Leviathan is reduced to zero hull points, it has been turned into a hulk, and there is a chance of a catastrophic detonation. Roll a d10, and add the number of points of damage scored since the hull was reduced to zero. If this roll is greater then 10, then the ship detonates. You can make this roll every time somebody puts fire onto even a dead ship (which means you can fire on ships that would normally be considered destroyed under vanilla FT rules.) If the die roll is a 1 or a 2, that means the ship will never detonate, though you can pound it into little itty-bitty pieces.

A ship that detonates does damage to every ship within 6". Every arc exposed to the exploding ship takes damage. This is considered straight damage, -1 for every inch away from the exploding ship, to every die.

Destroyers roll 2d6
Frigates roll  3d6
Cruisers roll 4d6
Battleships roll 5d8

Converting Leviathans to FT Stats

The following are rules for converting Leviathan ship designs to Full Thrust designs. Bay Weapons: Examine the damage at ranges: 1 / 7-10 / 11-15 / 16-20. Divide this damage by 5 to get the number of dice rolled at that range. Round fractions up.

Missiles: Examine the following table for conversions: 

TYPE	NUMBER Salvoes	NUMBER HIT	DAMAGE		RANGE
A	2		D4		D4		8"
B	1		D4		D4		10"
C	1		D6		D6		10"
D	3		D6		D6		15"
E	3		D6		D8		15"
F	2		D6		D6		10"
G	3		D4		D4		10"

Spinal Mounts: Examine the following table for conversions: 

TYPE	HIT	DAMAGE		RANGE BANDS
A	d6	d4+6		0-3"/2+
B	d6	d6+6		0-3"/2+ | 3-6"/3+
C	d6	d8+6		0-3"/2+ | 3-6"/3+ | 6"-10" 4+
D	d6	d10+6		0-3"/2+ | 3-6"/3+ | 6"-10" 4+
E	d6	d12+6		0-3"/2+ | 3-6"/3+ | 6"-10"/4+ | 10"-15"/5+

Screens: Battleships have Level 2 Screens, Cruisers and Frigates have Level 1 Screens, Destroyers have no Screens.

Armour: Amount of armour divided by 10

Hull Size: All hulls are considered average. Battleship MASS:200, Cruiser MASS:120, Frigate MASS:90, Destroyer MASS:60

Thrust: Thrust is the same.

Fighters: Six size fighter squadrons equal 36 fighters i.e. one die equals 6 fighters. You may group fighter squadrons in sizes other than six if you so desire.

Small Craft:1 die for every 2 small craft.

Turrets: According to the table: 

TYPE		NUMBER OF PDAF 
Battleship	5
Cruiser		4
Frigate		3
Destroyer	2