Does a group of minions skill dice decrease as the group loses members?
Example: 5 stormtroopers attack the players as a group. Their starting dice pool is is 4 dice, one for each member after the first one. The pool is therefore 1 green ability die and 3 yellow proficiency dice (from the 3 Agility).
After the first round of combat the players have done 12 damage, effectively removing 2 of the groups members (and wounding the third). The group now has 3 members, so the question is: is the group less effective, and does that translate to the dice pool needing to be rebuilt?
The new dice pool would be 1 green ability and 2 yellow proficiency. This makes sense to me, but I cannot find the rule as written.
If not, then does the last member of a group fight as hard as the group's starting strength - because the group is an abstraction, only getting "one" viable chance to hit each round. So even if there was only one stormtrooper left, he's still throwing 1 green and 3 yellow until he goes down.
Thanks in advance.