r/RocketMains

I'm a strategist main with my focus on learning how to do the basics with the strategists (aside from the aim learning curve lol) but that's besides the point. As mentioned in the title, I see a lot of Rocket support put down a brb in front or beside a desperate Strange portal for a clutch comeback does it work or is it only just a in case the team gets bullied by the enemy camping the portal? Also, do you guys have a map for secure BRB placements or is that only for the true mains hahaha