Firstly, I know you cannot re-roll a re-roll! My question does not involve that.

Also apologies if this has already been answered. I couldn't find it mentioned in the FAQ or any threads.

Question 1) A tank has these two cards attached to it:

No Retreat (Doctrine):
When attacking or defending, if there are no friendly tanks within close range of this tank, you may re-roll one of your dice.

Add-on Armour (Armour):
-1 initiative, Loses the Fast keyword. When defending this tank may re-roll any one defence die.

It is defending and rolls six dice (and there are no friendly tanks within close range).

Can it use both these effects together and re-roll two of these dice? Or just one?

Question 2) Similarly a tank has these two crew cards:

Precise Commander:
You may re-roll one attack die per turn

Precise Loader:
You may re-roll one attack die per turn

It is attacking and rolls six dice. Can I use both effects and re-roll two of these dice? Or just one?

Sorry if the answers are both yes and seem obvious. The last question may show the confusion:

Question 3)

A tank has Precise Loader and also has

Kurt Knipsel (Commander)

+3 Initiative. When rolling attack dice, you may re-roll up to two dice.

It is attacking and rolls six dice. Can I use both effects and re-roll three of these dice? Or just up to two?

if the answer to question 2 is yes then I think the answer to question 3 must be yes too, but it could be argued that "you may re-roll up to two dice" does not allow you to roll three despite having the other ability. (But in that case the answer to question 2 must be no too?)

I'd be interested to know what other players think is correct, or if there has been a ruling anywhere because it could massively change the outcome of a game.

Many thanks in advance!

Many thanks for the reply, I only ever used one re-roll effect per tank so there's lots of new possibilities now!