When Athel Loren goes to war, it is the Glade Guard who form the core of the army. Each Elven household fights together on the battlefield with disparate kinbands, combining to create one or more formal regiments under the command of a lesser Lord or Lady of the realm. The Wood Elf army can only seem haphazard and slightly disorganised to outsiders, for each band of Glade Guard is expected to follow the general's broad instructions but, at the same time, is encouraged to take the initiative when the opportunity presents itself. Such a principle often leads to an overlapping line of battle, with individual Glade Guard kinbands advancing and retreating like blown leaves in a storm, all the while pouring volleys of arrows into the foe.
Absurdly good tier 0 ranged infantry with excellent range, damage, speed, arcing fire, and they can fire while running forward. If you don't have to deal with heavily armored units, you can potentially use them in any battle. Higher tier WE ranged infantry primarily have extra tricks or damage types and don't vastly outperform them for base damage output.