Ordnance disposal using the improvised explosive devices defusal (IEDD) notebook

The IEDD notebook provides essential information to help identify and disarm improvised explosive devices. It is a reference tool, not a step-by-step solution, and requires the user to apply judgement and reasoning to determine the correct approach.

Defusers are expected to:

• Use the notebook to support identification of device types
• Apply logic and observation to determine safe actions
• Avoid relying solely on the notebook without understanding the situation

IEDD devices are more complex than standard IEDs and can impact performance. Their use should be controlled to maintain a stable and playable environment.

General considerations:

• Limit the number of active IEDD devices to fewer than 10 at any time
• Use them alongside standard IEDs to balance variety and pacing
• Be aware that they require more time for setup and player interaction

Key parameters to manage:

• Variant X
  • Non-defusable and not identifiable by players
  • Should not be used in standard gameplay scenarios
• Explosion size
  • The effective wound radius may be significantly larger than the visible blast
  • Capable of damaging vehicles and structures
• Activation radius
  • Defines the trigger distance
  • Large radii (greater than ~4m) can be difficult to manage, especially in urban environments with limited visibility

IEDD devices should be used deliberately, with consideration given to performance, gameplay balance, and player experience.