Missile rule clarification

Question

"Any player (even those not involved in the battle) may discard Missile(s) after dice are rolled, but before troops are removed. For each Missile discarded in this way, the player can change one die in the combat roll to an unmodifiable 6. A player may discard multiple Missiles to change multiple dice per battle.

Players may discard Missiles in any order and may respond to another player using a Missile by using a second (or more). If two or more players are trying to play a Missile at the same time, priority goes to the current player (attacker), then the defender, then each player clockwise around the table from the attacker."

A few questions here really first, "unmodifiable 6" (1)does that mean it can only be a 6? and(2) does that prevent another missile from "modifying" it to something else?

I play with a group who has routinely messed this up either way. For instance a single die was changed from 6 to 1 and back again several times just last week. If it gets changed to a 6 it can't change back according to the rule I read. But I am only one at a table of 5. Any help in this would be appreciated.

Answer 1

Missiles change a die into a '6' only. A missile can never modify a die to anything else.

Perhaps a non-spoilerific example might clarify.

• An attack roll on a Ammo Shortage territory is 6,5,1 versus a defense roll of 5,5. The defender's high die is reduced by 1 because of the Ammo Shortage's -1 modifier making their roll 5,4. The defender uses a missile on the '4' making it an unmodifable '6' (Ammo Shortage can no longer affect it), and the attacker loses 2 troops instead of the defender (6,5,1 vs 6,5 after missile instead of 6,5,1 vs 5,4 before missile)