Just making sure this is right. Fenn can't Hotcop someone if he used his ability on a target attacking him, correct?

Maybe? Fenn specifies "modify dice" so the token should be spent, but does not convert results? It's kinda ambiguous, actually.

You can spend tokens without modifying results

So you can be forced to spend a focus for no offensive benefit

(Edit: incorrect, see below)

21 minutes ago, ficklegreendice said:

You can spend tokens without modifying results

So you can be forced to spend a focus for no offensive benefit

You can spend a token to modify zero results - You can't spend a token for no reason.

If Fenn has Fenn-ed you, then any 'spend a focus token to modify focus to hit' is locked out, as is focus-to-crit with calculation.

I think the last paragraph of the Hotshot Co-Pilot FAQ sets a precedent for this case.

"If the defender has Hotshot Co-Pilot equipped, and the attacker cannot modify his dice such as from Snap Shot or after resolving Accuracy Corrector, the attacker is not able to spend a focus token, and therefore does not spend a focus token."

If Fenn is defending against the ship selected by his pilot ability, the attacker can't modify dice because another card effect prohibits it. Therefore HotCop cannot force the token spending.

Fenn's ability blocks hotshot. THe token cannot be spent, regardless of the number of eyes rolled.

Which is why he is PS11 and shoots someone to remove their focus and then uses his ability on someone else.

1 hour ago, Viktus106 said:

Which is why he is PS11 and shoots someone to remove their focus and then uses his ability on someone else.

Exactly