This is a great book. Written specifically to capture the tactics involved in the Russian-Chechen Wars. This is not a broad generalization, but breakdowns of specific engagements.
LOTS of take aways, from both sides.
The two biggest:
-If the Chechens had discipline (and some outside help for beans and bullets) they would have been able to do more.
-If the Russians had better infantry, the Chechens wouldn’t have done much at all