Also to practice the response, you have people with roles that are extremely hard to practice because they involve mass-coordination that rarely happens in real

Also to practice the response, you have people with roles that are extremely hard to practice because they involve mass-coordination that rarely happens in reality but you still want them to have some prior competence at. The goal is often to make their simulated experience ‘realistic’ even if the model is fraying at the edges. All models are wrong but some are useful and all that.