Keep in mind:
Max Health = Health + Shield
Health can be from 1 - 100
Shield can be from 0 - 100
Mini Shield gives you +25 Shield until you are at 50 Shield.
Big Shield gives you +50 up to 100 Shield
AR (assault rifle) deals 33 damage
A Purple Shotgun deals 30 - 200 damage (in this scenario 110 damage)
A Gold Rocket deals 130 damage
A Cracked shield means you have 0 Shield remaining

USE SLOW MOTION

Pause at 6:12. What is the opponent’s possible health range after being cracked for 80.
And what is their most likely health.

1 - 100 HP, most likely 70 HP
You can hear when someone’s shield gets broken (or “cracked”), and this means
they now have no shield, and Max Health of 100 or less. We can make good estimates
of how much health they have left based on knowing common increments for shield.
Shields are commonly gained in increments of 25 or 50 (25 using Mini Shields, up to
50 Shield, and 50 using Big Shields up to 100 Shield). While it’s possible, people
rarely have 175 Max Health, because Mini Shields are usually popped in pairs
(25 + 25 = 50), because you can’t use Mini Shields to exceed 150 Max Health. This
means if you break your opponent’s Shield with a shot that does 80 damage, they
most likely started at 150 Max Health, and are now most likely at 70 Max Health.
They could not have started at 200 Max Health, because 80 would not have cracked
the shield (200 - 80 = 120, means they still have at least 20 Shield) There is a
small possibility they were at 175 Max Health, and now are at 95 Max Health.

Pause at 6:14. What is the opponent’s health range and their most likely health.

1 - 55 HP, most likely 25 HP
If the player has guaranteed less than 100 health, and they are hit for 45,
then they now have less than 55 health (<100 Health - 45 Health = <55 Health).
If you think they have 70 health, which is most likely, and they are hit for 45,
then they probably now have 25 health ( 70 Health - 45 Health = 25 Health).

How many AR shots does Nick need to hit to down them?

1 - 2 shots, most likely 1
If an AR (assault rifle) does 33 damage to the body and they are most likely at
25 health, he can take the player out with one shot (25 - 33 < 0) The most health
they can be is 55, in which case he could take them out with 2 shots (55 - 33 - 33 < 0).