Complex sentence: Sleeper cells have risk assessment levels ranging from Low to Urgent and may or may not act on its own, collectively as a hive mind, or under instruction and when directed, can be directed at a local, regional, national or international level.
Split into simpler sentences: Sleeper cells have risk assessment levels ranging from Low to Urgent and may or may not act on its own, collectively as a hive mind, or under instruction and when directed. Direction can be at a local, regional, national or international level.