When the Screamer was defeated, Fenna took a moment to assess the situation. The other two screamers had caused casualties, but the order to stay on them with three at all times had worked. With two arms they couldn't defend three sides at all times and spear wielders had been able to find an open spot to stab them. 

They barely got a moment to catch a breath. The order to fall back to the center was given. It felt wrong to abandon this side of the wall and allow the enemy to take it, but an order was an order and she wasn't a military expert. She had to trust their decision. She repeated the order and the Falcons moved back, killing enemies as they moved back to the center, stepping over already fallen soldiers of the factions that had been stationed here. The Rabbits, Fenna realised. MacKensie had been stationed to her left on this section of the wall. 

At least MacKensie wasn't among the fallen soldiers.

"Reposition! Ready swords!"

They were close to the Rabbits. Fenna searched for MacKensie but couldn't find her. If needed, she'd assist the Rabbits, but they seemed to do well. She focused her attention on the Falcons and directed their repositioning so they could take a stand against the incoming enemies.