Well, hiding will always be a strategy when playing a BR, no idea how the duel squad mode works though, but I don't think it's that different from the classic game mode.

I thought Heroic was the highest rank in Free Fire, my little cousins always told me they had reached that rank, what makes it so special then?

BTW: I know you're busy with your another job homie, but remember to always take a look at the posts from another users :) Engaging with others is as important as creating quality content.