There is a hyper-realistic two way range in East Saint Louis.
Real force on force stuff. Zombie waves, vehicle borne attacks, CQB.
The range safety officers call the range hot with such colorful phrases as “Motherfuckers! We gonna killz you for coming on down here!”.
Make sure you arrive in Company strength, and have QRF and helos to pull you out when you are done shooting.
You will know you are leaving grand range when you start to see police cars again - they don’t patrol the impact zones for obvious reasons.