These are the achievements for Mission 2 of the single player campaign:
1. Search Lights Destroyed
2. Troop Car Destroyed
1) To achieve this medal, you must destroy all of the Nazi search lights. They are very large, and are on the ground. Here are their approximate positions:
#1 -Directly under the tunnel, after you clear out near the monument, it will be on your right.
#2 - In the center of the first Nazi camp / outpost that you're instructed to destroy.
#3 & #4 - There are 2 in the middle front and rear of the 2nd camp / outpost.
#5 - Right after re-securing the motor pool, you're told to head up and destroy Nazi marked buildings in town. A few hundred feet up this path is a spot light off to the left.
#6 - A few seconds after #5, you should see a searchlight on the right side of the road.
#7 - After crossing the bridge in the middle, between the 2 Nazi HQs (Headquarters) you were instructed to destroy, turn right and you should see it on your left.
#8 - After destroying the 7th you should see it in the grassy area near the last HQ you're supposed to destroy.
2) Right next to one of the spotlights, located near some factory looking building, is a train. You should get a medal opportunity somewhere around here. Start shooting, and destroy the train car, and you should receive this medal.
Thanks to Messiadbunny for all the help!