The two forces vanguard's are engaging, with the majority of the infantry remaining to guard the Imperial spellcasters and archers. The light cavalry are harassing the Varden's left flank, and Murtagh is fighting Cyan and Nasuada up in the air. You are in the right flank, have broken through and got most of the Varden's spellcasters, but are currently isolated and your force has mostly lost cohesion.