Tactics in Heroes 4

Basic Tactics gives all friendly creatures +1 speed and +1 movement. It also allows you to learn Advanced Offense, Advanced Defense, and Advanced Leadership.

Advanced Tactics gives all friendly creatures +2 speed and +1.5 movement. It also allows you to learn Master Offense, Master Defense, and Master Leadership.

Expert Tactics gives all friendly creatures +3 speed and +2 movement. It also allows you to learn Grandmaster Offense, Grandmaster Defense, and Grandmaster Leadership.

Master Tactics gives all friendly creatures +4 speed and +2.5 movement.

Grandmaster Tactics gives all friendly creatures +5 speed and +3 movement.