These are the levels required to unlock each mode. This is the path to take for NS runs. Deviating from this path in an NS run will disqualify it from NS and instead make it an ES run. If something is missing or wrong, contact me or one of the other mods.

• Sandbox: Unlocked after finishing Event 2 of the Pistol ladder on the Warehouse range.
• Sideshows: Unlocked after finishing Event 3 of the Pistol ladder on the Warehouse range.
• Zombie ladder: Unlocked after finishing Event 5 of the Pistol ladder on the Warehouse range.
• Action ladder: Unlocked after finishing Event 6 of the Pistol ladder on the Warehouse range.
• WWII Allied Location: Unlocked after finishing Event 10 of the Pistol ladder on the Warehouse range.