Lead Shots or Hitscan? 343 developer please!

I need an official answer from someone at 343 that helped develop the aiming system.

Do I need to lead shots at long range with the BR or is it simply hitscan? (Point and shoot.)

This has been an argument for weeks now and nobody has a clear answer.

Is there bullet drop? Projectile speed? Or is it hitscan?

I need an official answer!!!

Don’t need more than one thread