[Torg] Multi-Actions and skilled use...

[Benjamin Grant]

With One-on-Many, the character states his several actions, assigns his 
penalties, and makes a roll for bonus number.

For example, Fred wants to shoot two different guys and throw a rock at 
a switch.  He has no Hastens, so he is going to One-on-Many.  He elects 
to assign his -2 penalty to the rock throwing, and the -4 and -6 
penalties to the 2 shots.

The GM rules that throwing the rock is a Missle Weapons skill, which 
Fred does not have.  Fred does have Fire Combat.

Fred rolls a 20.  Does he get to roll again or not?  He does have Fire 
Combat, but does not have the skill to throw the rock.  He makes one 
roll.  Does he reroll on 20s if some of his one-on-many actions are 
skilled, or does he not reroll 20s if some of his one-on-many actions 
are not skilled?

Thanks.