Here is the full list of all 47 Panzer Tactics HD achievements.
Lose a unit
Win one scenario mission
Kill your first enemy unit
Complete your first mission with a 3 star-rating
Lose a campaign mission
Upgrade a unit
Complete the first tutorial mission
Complete the second tutorial mission
Complete a training scenario
Kill an enemy officer
Capture and hold 5 cities in a single mission
Complete the Axis Campaign mission 'Warsaw'
Complete the Axis Campaign mission 'Norway'
Complete the Axis Campaign mission 'Through the Ardennes'
Complete the Axis Campaign mission 'Dunkirk'
Complete the Axis Campaign mission 'Crete'
Complete the Axis Campaign mission 'Tobruk'
Complete the Axis campaign mission 'Tunis'
Complete the Axis campaign mission 'Suez Canal'
Complete the Axis campaign mission 'Kharkov'
Complete the Axis campaign mission 'Sevastopol'
Complete the Axis campaign
Complete all missions in the Axis Campaign with a 3 star rating
Complete the Soviet campaign mission 'Moscow'
Complete the Soviet campaign mission 'Stalingrad'
Complete the Soviet campaign mission 'Battle of Kursk'
Complete the Soviet campaign mission 'Iasi-Kishinev'
Complete the Soviet campaign mission 'Leningrad'
Complete the Soviet campaign mission 'Operation Bagration'
Complete the Soviet campaign mission 'Minsk'
Complete the Soviet campaign mission 'Budapest'
Complete the Soviet campaign mission 'Seelow Heights'
Complete the Soviet campaign mission 'Peenemuende'
Complete the Soviet campaign
Complete all missions in the Soviet campaign with a 3 star rating
Complete the Allied campaign mission 'Salerno'
Complete the Allied campaign mission 'Operation Shingle'
Complete the Allied campaign mission 'Monte Cassino'
Complete the Allied campaign mission 'D-Day'
Complete the Allied campaign mission 'Operation Cobra'
Complete the Allied campaign mission 'Through Brittany'
Complete the Allied campaign mission 'Market Garden'
Complete the Soviet campaign mission 'Huertgen'
Complete the Allied campaign mission 'Battle of the Bulge'
Complete the Allied campaign mission 'Remagen Bridge'
Complete the Allied campaign
Complete all missions in the Allied campaign with a 3 star rating