Epic 40,000: Armies Book (1997), p86 — Nurgle Plague Tower

The massive mortars of the Nurgle Plague Tower blast the foe apart as its ramshackle frame trundles across the battlefield, crushing everything in its path. Inside its protective walls, the demented followers of Nurgle howl their praises to the Lord of Plagues before launching their purulent charge.

Speed	Armour	Power Fields	Damage Capacity	Assault	Transport
10cm	5+	-	8	6	8

Weapon Table

Weapons	Fire Arc	Range	Firepower	Notes
Weapon Battery	Front	45cm	6	-
Mega-Cannon	Front	60cm	(1)	Place Barrage template and roll to hit all units underneath it. Ignore any cover benefits for the target. Each attack places a Blast masrker on the target detachment.
Plague Mortar	Front	30-90cm	Barrage	Firepower=1 in firefights.

Critical Damage Table

2D6 Roll	Result	Damage	Notes
2	Wheel Locked	+0 Points	The Plague Tower is immobilised for the rest of the turn.
3	Hull Ruptured	+0 Points	D6 randomly determined units being transported take a hit.
4	Plague Mortar Damaged	+1 Point	The weapon may not be fired until repaired.
5	Weapon Battery Damaged	+1 Point	The weapon may not be fired until repaired.
6	Mega-Cannon Damaged	+2 Points	The weapon may not be fired until repaired.
7	Fire	+2 Points	The Plague Tower moves at half speed and suffers an additional point of damage at the end of each rally phase until the fire is put out by being repaired.
8	Engine Damaged	+3 Points	The Plague Tower is immobilised until the damage is repaired.
9	Axle Snapped	+4 Points	Halve the war engine's Firepower if it moves in the same turn as it fires (roll a 4+ to lock-on with the Mega-Cannon). It may no longer move in the assault phase. This damage cannot be repaired.
10	Raging Fires	+5 Points	D6 fires break out (See Fire above).
11	Tower Collapse	+6 Points	The Plague Tower is permanently immobilised and D6 randomly transported units take a hit. Survivors must dismount next turn.
12	Catastrophic Damage	See table below.

Catastrophic Damage Table

1D6 Roll		Damage	Notes
1-2	Internal Explosion	Wrecked	A series of internal explosions destroys the Plague Tower.
3-4	Inferno	Burning	The Plague Tower is engulfed in flames, killing the crew. No unit may approach within 5cm due to the heat. Roll again on this table at the end of the next turn, and apply the result rolled, counting a 3 as Internal Explosions and 4 as Magazine Explosions.
5	Magazine Explosion	Destroyed	The Plague Tower's magazine explodes, killing the crew and belching corrosive, noxious gases into the air. Roll a D6 to hit any units within 5cm.
6	Massive Explosion	Destroyed	The Plague Tower is destroyed in a massive explosion. Any unit in base contact takes D6 automatic hits. Roll a D6 to hit any unit within 3D6cm.