A site-specific exercise implemented to determine the effectiveness of the emergency response procedures. Often a scenario

Tactical Decision Games -

scenarios that define who you are, why your there, what your assets are, your mission or objective and the threats against you. The situations can sometimes have gaps or be vague in certain areas, this forces the players to make assumptions or educated guesses. Participants give their solutions and a moderator may lead discussion on the most useful solution.

They are about  working through scenarios