The large-scale battle was raging on but the Dark Zombies were careful about a number of things. For one, they wouldn't push too far or deep into the enemy territory. Instead they stayed huddled up in formations where they could protect each other.
There were far too many Zombie Hunters in a small place for them all to be effective in the first place. Which was part of another reason why they didn't push. Killing the Zombie Hunters would put them in a more difficult position.
While already injured they would suffer from a new wave of powers, and at the same time, the goal was to hold their position while losing as little as possible.
One of the zombies had a unique trait, where he could stretch out his arms. The muscle fibers would break down, allowing him to grab onto his opponent from far away, or with a swing he could elongate his arm and hit several people .