In the vote between the Fortress and the Sylvan factions as candidates for the release version of Heroes VII, fans have quite rightly been wanting more information about what these factions will actually contain. The Shadow Council page has rather epically brought forth a tale from Kaspar the necromancer, containing his knowledge about the wood folk. While much of his tale deals with the Elven people, there is also an interesting titbit about their combat style and units (some of which can be seen in the sketches in this picture):

"Elven armies are composed of a fluid array of smaller units, all of which seem to instinctively know what the army as a whole needs to do. The swiftest runners and best archers are scouts and skirmishers, reporting back to the nobles who command each unit. Usually Elves will screen their main force with a line of skirmishers who will serve to draw opponents into traps, where they can be pounded with arrows from three sides.

The main body of the army is more heavily armed and armoured. Elven cavalry is mostly light cavalry, again designed for speed and manoeuvrability over shocking power. Riders will fire arrows or throw spears from horseback, eschewing heavier weapons like lances."