Topic: Multiple HC's or External Tubes

I was playing around and designed a mech with four arms, two hand-carried weapons, and two external tube missile packs ...

Looked great, and then I remembered the 1-in-6 chance of getting either type of weapon destroyed on any damaging hit.  It then came to mind that there were a couple of ways to play this when you had multiple weapons of that type:

1. Least Forgiving. Roll 1d6 per HC or External weapon every time you are hit, and all 1's result in a weapon being hit and destroyed.  That means the above example mech would roll 4d6 every time it was hit, would be likely to lose at least one weapon per hit, and could lose multiple weapons per hit.

2. Most Forgiving. Only roll 1d6 regardless of how many HC or External weapons you have, and if it comes up 1 then you lose one weapon. Unlikely to lose a weapon with each hit, and only lose one at a time.

3. Middle Ground. Roll 1d6 per weapon, but regardless of how many 1's come up you can only lose one weapon per hit.  More likely to lose weapons, but will only lose one weapon per hit.

Any opinions?

Cheers,

Christopher