This mission lets you practice entering random MGRS coordinates as a steerpoint, and attack targets at that point, guided by an airborne JTAC (Pontiac). Depending on the enemy ground units, you'll be asked to either use GBU-12 (guided by Pontiac) or CBU-97.
A new group of enemy units will spawn once you've cleared out your current task.
Change the loadout as you like, default is 4 x GBU-12 + 6 x CBU-97 + C/L fuel tank
You will need the free Marianas map.