[29%] 
Ok... One day GW might explain how to use this rule properly, instead of including it in every edition without a clear explanation.
Swarm rule:
pg43.
If a unit consisting of 5 ripper swarms (3 wounds each) gets hit by a blast/template weapon that inflicts 2 wounds on them. What would be the correct way in dealing with it.
a) 2 wounds are doubled, causing 4 wounds which kills one base and inflicts 1 wound on the second base (leaving 3 fully healthy and happy rippers)
b) first ripper swarm takes 1 wound which is doubled to 2. Then when the second wound is allocated, it is also doubled, but the model has no more wounds remaining, so is therefore wasted. Resulting in 1 dead ripper swarm, and 4 fully healthy and happy ripper swarms
Instant Death:
pg16.
pg38.
Next question is the same, but what will happen if the weapons strength is double the toughness of the ripper swarm, causing instant death. Is it:
1) 2 unsaved wounds becomes 4 because of the swarm rule; and thus 4 instant deaths with 1 happy (but also lonely) healthy ripper
2) 2 unsaved wounds cause 2 instant deaths as the model suffers double wounds and instant death simultaneously, leaving 3 happy and healthy rippers
Here's some other peoples opinions on the matter: http://www.lounge.belloflostsouls.net/showthread.php?26507-Swarm-rules-and-instant-death
Swarm rule:
pg43.
If a Swarm suffers an unsaved Wound
from a Blast, Large Blast or Template
weapon, each unsaved Wound is
multiplied to two unsaved Wounds
If a unit consisting of 5 ripper swarms (3 wounds each) gets hit by a blast/template weapon that inflicts 2 wounds on them. What would be the correct way in dealing with it.
a) 2 wounds are doubled, causing 4 wounds which kills one base and inflicts 1 wound on the second base (leaving 3 fully healthy and happy rippers)
b) first ripper swarm takes 1 wound which is doubled to 2. Then when the second wound is allocated, it is also doubled, but the model has no more wounds remaining, so is therefore wasted. Resulting in 1 dead ripper swarm, and 4 fully healthy and happy ripper swarms
Instant Death:
pg16.
If a model suffers an unsaved
Wound from an Attack that has a Strength value of double
its Toughness value or greater (after modifiers), it is reduced
to 0'Wounds and removed as a casualty.
pg38.
Unsaved Wounds inflicted by an Attack
with this special rule automatically
inflict Instant Death, regardless of the
victim's Toughness
Next question is the same, but what will happen if the weapons strength is double the toughness of the ripper swarm, causing instant death. Is it:
1) 2 unsaved wounds becomes 4 because of the swarm rule; and thus 4 instant deaths with 1 happy (but also lonely) healthy ripper
2) 2 unsaved wounds cause 2 instant deaths as the model suffers double wounds and instant death simultaneously, leaving 3 happy and healthy rippers
Here's some other peoples opinions on the matter: http://www.lounge.belloflostsouls.net/showthread.php?26507-Swarm-rules-and-instant-death
