Microtactics, or let's learn to analyze
From The Battle for Wesnoth Wiki
More than once I've seen how decent, not bad strategists get lost in situations that require an efficient use of microtactics on the field.
Let's start with what it actually means. A microtactic in Wesnoth is a capability to control your forces rationally in offense or defense depending on a particular situation. Here I'm not going to describe all possible situations or give you specific instructions what to do. Instead I'll try to teach you how to set up the basic point of your offense or defense.
The key of success in this matter is an ability to prioritize. Priorities may differ, starting from killing a particular unit and up to taking the key point on the map.
TODO