lichmaster
Hero
Hmm.. need to read if and how LU frames bonus actions differently. For me this simply means: you declare you want to attack (so you're obliged to take that action), before you do so you use the bonus action to mark a target for PtA, and then proceed to attack.Because it says "When you take the attack action", that implies it follows after.
If the text had instead said "if you take the attack action, do blah".... then the bonus action could happen before.