Assault and capture the Tundran command post at Castle Potemkin. Tactical deployment of your forces will be required to penetrate the anti-armor defences that cast a ring of fire around this region.
Move out from the starting location, and take a right at the fork in the road to reach a small Tundran camp. Eliminate the enemies, then shoot out the Ammo Dump to liberate the Flame Veterans. Return to the fork, take the left path, and cross the bridge. Take out another group of Tundrans on your way, then climb the slope nearby. Defeat the enemies here, and shoot out the Ammo Dump to liberate a Light Tank. Lead your Frontier forces across the next bridge. The castle's main entrance is guarded with anti-armor units, so make a left turn to take the roundabout path inside the stronghold. Launch an attack on the castle, but take out the Heavy Tank with your Bazooka Vets first. With the first wave of defence eliminated, it is only a matter of time until enemy reinforcements arrive. Target the Capture Point and send your infantry to secure the Tundran flag to complete the mission.