The study of tactics marks the difference between a simple warrior and a schooled soldier of the battlefield. The skilled tactician can step in to protect wounded allies, take better advantage of flanking opportunities, and use armor and shields more effectively.
The Tactics skill allows you to make better use of your equipment and position on the battlefield. As you gain levels, you'll unlock new and more powerful abilities tied to the skill. Tactics checks depend on your Insight trait.
Archetype vanguard has this skill.