A Different Missile System for Full Thrust

Message text written by INTERNET:FTGZG-L@bolton.ac.uk
>>A launcher can launch salvos of  up to 5 missiles per turn.  The salvo
>moves as a single unit and can be composed of standard missiles, ECM
>missiles, or a mix of the two.  Movement as per standard missile rules.
 
>Std missiles attack as a 1 die submunition pack.  ECM missiles roll
once 
>adding +1 for each additional ECM missile over the first, subtracting
>shields. 
>A _1_ automatically has no effect.  Needle missiles roll as per needle
beam
>fire.<

When you say subtract shields do you mean:
1) The entire ECM portion of a salvo rolls a single die.  +1 is added to
this roll for every ECM missile past the first.  The result is read as 
beam battery attack  and is affected by shields just like a beam
battery.  
A natural 1 misses.

or 

2) The entire ECM portion of a salvo rolls a single die, with the
following
modifiers
+1 for every ECM missile past the first.
-1 for every active shield on the target.
The result is read as  beam battery attack (1-3: 0 pts., 4-5: 1 pt. 6: 2
pts.).	A natural 1 misses.

Ray