After several attempts at fighting the Na'Kuhl, we had a serious problem with losing team members due to ragequit or hopelessness. The main problem, correct me if I interpret wrongly, is Na'kuhl encroaching on the spawn point and killing players before they can even engage impulse drive.
It would make perfect sense to me if the devs choose a way to protect the spawn point:
1-Let the Na'Kuhl go wherever they want in the battlezone, but move the spawn point to a minimum safe distance out of weapons range.
2-Establish an NPC no-fly-zone with a radius of 12 km around the player spawn point.
"We need breathing room!" - General Kang, Star Trek: The Undiscovered Country.