An Apple a Day

Mechanics
The basic version of this skill provides players an additional 25 health, on top of the base of 230. Aced, it provides 30% more stamina than what the base is, which can change depending on the equipped Armor, and is used to sprint.

Strategy
This skill is more useful in loud. While on higher difficulties, the additional 25 health may not help as much, on lower difficulties it can help the player survive more shots than they usually would be able to as the damage is lower. However, when coupled with Tank, your health will rise substantially allowing for the potential of health builds in loud.

The aced version, increasing stamina and the length of sprint, has a much wider variety of uses: bag carrying, dodge builds with Run for it! and hiding from guards on certain maps. If the player has a high enough run speed, it can even be used to outrun Cloakers. In large maps where key points are spread out, such as Blood Money or Shadow Raid, it decreases the amount of time spent traversing through high risk areas, either due to high amounts of enemies or guard patrol routes which can also be aided through Duck and Cover and Parkour basic.

Being a Tier 1 skill, with a low point cost, it's a fairly safe pick for any player regardless of level, map, tactic or build, there to take a few hits or get out of a rough situation.