This map uses the same one as the first part of Chapter 7: A March in the Snow using the north half of the map. Leonhardt will start in the north by the designated area while Neige and Aladdin start at the SW most part of the map. The Imperial base camp is located approximately midway through the map with an indestructible barricade blocking access from Neige/Aladdin's position. There are also ragnacrates scattered about the map, giving the snipers easy kills on enemies positioned nearby them.
We have our next mission
"Squad E will launch an assault on enemy troops marching through the mountains. It looks like the Imperials are heading to a village that's still inhabited by civilians. We've sent marines to protect the townsfolk, so please concentrate on the enemy at hand."
Location: Achtzehn Mountain Trail
Description: Keep your cool in the heat of battle by capturing the enemy's base camp. The mission ends in failure if Neige, Leonhardt, or Aladdin die in combat.
"All right, you are cleared for deployment. I wish you the best of luck."
One method can be to focus exclusively on Leonhardt and have him snipe the ragnacrate by the tank to destroy it and use his remaining ammo to pick off the scouts, while continuously moving up. As long as he remains hidden from enemies, they will not move towards him. On the next player turn, he can snipe the ragnacrate by the grenadier guarding the base camp and easily move in.
Aladdin, Leonhardt, and Neige gain a positive fourth potential or replace a negative one with a positive one at the conclusion of the squad story.
The mission name is a reference to the movie Top Gun.