though nothing crazy, if this is your first RTS, this prologue does a good job of introducing the basics
Prologue Campaign: The first campaign in Warcraft III provides an excellent introduction to troop control and base management.Though this is with the orcs, it will still provide helpful strategies to establishing and expanding bases while balancing attacking enemies and defending from their attacks. Prologue Campaign Walkthrough: The Prologue campaign provides an excellent starting point to controlling troops and establishing a base.For a more in depth look, visit each race page ( Human, Orc, Undead, and Night Elves) for deeper strategy when using each race.
Getting Started in Warcraft III: Reforged