I spent 20 years in the SEAL Teams and I am personally guilty of conducting, directing, and overseeing vast amounts of brutal training.
The training I led was advanced Unit Level Training that prepared SEALs for combat deployments in Iraq and Afghanistan. It required the SEALs to hike long distances in 100+ degree temperatures in the desert.
Once at a simulated target, the SEALs would be engaged by Opposing Force (OPFOR) SEALs acting as enemy fighters. The OPFOR would shoot the SEALs with paintballs.
Explosions would be detonated in the vicinity of the SEALs to shock them. Smoke grenades would be set off to cause confusion.
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