Tom Clancy's Ghost Recon Advanced Warfighter/Mayday! Mayday!

After an encounter with anti-air artillery, you are forced to deploy in a hostile fire area.

During this mission, you are given a drone to spot enemies for you. It should be used extensively in order to detect incoming enemies or to spot enemies in their patrol route.

Destroying anti-air
The first ADAT is located west of your position, and is guarded by only a few soldiers. When you destroy it with a C4 charge, four enemies will approach from the north.

The second ADAT is located within a scrambled area. Even though the region is supposed to be scrambled, the map marker gives the exact location of the AA defense. When you enter the scrambled zone, enemies and objectives will not be shown on the hud; however, you can still use the drone to visually spot enemies through its camera. When the second ADAT is destroyed, two cars will approach and park on the road north of the destroyed ADAT.

The final ADAT is located to the north in a small enemy camp. When it is destroyed, a vehicle in the camp will approach and deploy it's soldiers.

Once the ADATs are taken out, you will receive a new objective to destroy two artillery units in the castle area.

Artillery
From the third ADAT, head south east. To enter the castle area, you will need to circle around the building, and approach from the east.

Bugs

 * From the third ADAT, if you try taking the north-east route to the castle, you will fall through the terrain.