There will be more combined training happening on Fort Sill this morning.
More than 150 Marines are on post to take advantage of the Joint Fires and Effects Training System. The special building is made up of different simulators that help soldiers, Marines, airmen and sailors learn how to call for artillery and close air support.
The simulators, built by Hollywood designers, feature huge projection screens, mock desert areas and even a mock-up of a Middle Eastern apartment where soldiers can call for support against the enemy.
We'll have coverage of the event on 7News tonight.