i'v only used them a few times online and only once on sp, but they are only any good for defedning... hide them at start somewhere in the middle of knowhere, and the either snipe the enemy gen or flank large amounts of men, they can do afir bit of damage, i reccomend using them in 2's and 3's to have any great effect, and they cant take on many infantry and no cavalry one vs one... think of them as nizaris that can hide :P