I edited the Void Stalkers' Favored Tactics/Battlefield role slightly to better solidify their niche; on the ground, they specialize in operating behind enemy lines and apply guerrilla/terrorist tactics to target enemy commanders and demoralize the foe. 

[@Sophrus] Haha, yeah, many would argue that they're a cowardly bunch, but Gorseval doesn't believe in a fair fight -- just victory.