AI Recruitment
From The Battle for Wesnoth Wiki
This page is work in progress
How it works
Aspect recruitment_instruction
Examples
Recruit 3 Grunts (and nothing more) in turn 3-5. Recruit so, that there are at least 4 scouts in total and then recruit other units. Recruit 6 Grunts or level 2 units (whatever seems better for the AI). Recruit 5 scouts with leader1 and 5 Grunts with leader 2. Do even recruit the Grunts if leader1 cannot recruit all of the scouts.
Do not recruit.
This will not work.