Not sure if those messages were referring to what I said but they'd be irrelevant if they were.
Maybe I need to word it better.

Is it first to 8 wins out of the 15 matches played in total (3 matches on 5 mods give this number),
or is it best 3 of 5 wins of the five mods (meaning the score is irrelevant e.g if Team A wins 2-1 in abd it just means they have one "mod win" and it's first to 3 "mod wins" out of the 5 mods.)