I credit that I have scored
So it turns out that “credit” is a synonym for “believe” (and “credits” is thus a synonym for “believes”); the Wiktionary page even gives an example in which “credit that” is used exactly like “believe that”.
Using a Focus point and Brains action, I made just that change in “Bounties (Heists)”, leaving the rule with the same meaning. Having spent Focus, I was able to immediately try another Heist action, and changed “credits” to the somewhat less grammatical “credit” using Tools of the Trade, getting my Target into the ruleset.
My team – SingularByte, Snisbo, and I – each gained a Triumph as a consequence.
Josh: he/they
I could not be more proud of you all. Sincere congratulations.