Slitherine

It’s unfortunately not always clear enough that there are sometimes more chances to gain the same unique commander once in Blitzkrieg (BK), Panzerkrieg (PK) and Endsieg (ES). Most commanders from the Sandstorm (SS) campaign can also be earned in Endsieg.

Here is a list where, when and how to obtain the German commanders:

Gerhard Barkhorn
• BK02, Warsaw, 10.09.1939, Fighters deal 30 damage to aircraft
• BK05, Dunkirk, 23.05.1940, Destroy a Spitfire
• PK07, Caucasus, 29.07.1942, Destroy 6 Soviet air units
• ES01, 1st Soviet Donbass Offensive, 18.07.1943, unlocked on scenario start if no core imported
• ES04, Zhitomir-Fastov, 08.11.1943, Destroy 6 Soviet aircraft (if Barkorn not unlocked yet)

Hansgeorg Bätcher
• BK03, Norway, 08.04.1940, Destroy a British naval unit
• BK05, Dunkirk, 23.05.1940, Destroy 2 Transport Ships
• PK09, Operation Winterstorm, 12.12.1942, Tac bombers deal 12 damage in 5 turns
• ES11, Huertgenwald, 01.11.1944, Destroy 6 US air units

Heinz Guderian
• BK04, Belgium, 10.05.1940, Complete the mission in 35 turns
• PK06, Approaching Stalingrad, 01.07.1942, Complete the objectives in 26 turns
• ES14, Antwerp, 01.01.1945, Complete the objectives in 26 turns (unlocked later in ES15 on scenario start)

Johannes Bölter
• PK01, Rzhev Salient, 25.01.1942, Destroy 2 Soviet tanks in 5 turns
• ES01, 1st Soviet Donbass Offensive, 18.07.1943, unlocked on scenario start if no core imported

Theodor Scherer
• PK02, Demyansk, 20.03.1942, Defend Kholm
• ES07major, Moscow 1944, 20.05.1944, Capture Klin and Kaluga in 12 turns
• ES07minor, Anzio, 12.02.1944, Retake Anzio or Nettuno

Hermann Balck
• PK03, Kharkov 1942, 17.05.1942, Take Balakleya and Barvenkovo in 5 turns
• ES07, Falaise Pocket, 11.08.1944, 5 units of the 7th Army must escape in 15 turns (either Sandrock or Balck)

Manfred Eisenberger
• PK04, Sevastopol, 01.06.1942, Destroy Maxim Gorky I in 5 turns
• ES11, Aachen, 17.10.1944, Establish a supply link to Aachen (either Mickl or Eisenberger)

Franz Wegmann
• PK04, Sevastopol, 01.06.1942, Destroy 3 air units and one cruiser
• ES05, Novgorod, 16.01.1944, Destroy 3 Soviet cargo trucks (either Wegmann or Peltz)
• ES10, Market Garden, 18.09.1944, Destroy 15 Allied paratroopers on the ground (either Peltz or Wegmann)

Hans Valentin Hube
• PK08, Stalingrad, 15.09.1942, Destroy 3 artillery east of the city
• ES01, 1st Soviet Donbass Offensive, 18.07.1943, Panther D must survive and deal 12 damage (unlocked later in ES03, either Sandrock or Hube)

Günther Rall
• ES02, Belogorod-Kharkov, 10.8.1943, Destroy 4 Soviet air units (if not imported)
• ES09, Paris 1944, 18.08.1944, Destroy 5 US air units (either Marseille or Rall)

Hans Sandrock
• SS06, Gazala, 26.05.1942, Destroy 6 Allied tanks in 10 turns
• ES01, 1st Soviet Donbass Offensive, 18.07.1943, Panther D must survive and deal 12 damage (unlocked later in ES03, either Sandrock or Hube)
• ES07, Falaise Pocket, 11.08.1944, 5 units of the 7th Army must escape in 15 turns (either Sandrock or Balck)

Dietrich Peltz
• SS07, Herkules, 05.07.1942, Sink 4 ships
• ES05, Novgorod, 16.01.1944, Destroy 3 Soviet cargo trucks (either Wegmann or Peltz)
• ES10, Market Garden, 18.09.1944, Destroy 15 Allied paratroopers on the ground (either Peltz or Wegmann)

Hans-Joachim Marseille
• SS01, Tobruk, 31.03.1941, Damage enemy aircraft with German fighters: 10
• ES09, Paris 1944, 18.08.1944, Destroy 5 US air units (either Marseille or Rall)

Johann Mickl
• SS03, Operation Crusader, 19.11.1941, Destroy British tanks: 10
• ES11, Aachen, 17.10.1944, Establish a supply link to Aachen (either Mickl or Eisenberger)

Erwin Rommel
• SS01, Tobruk, 31.03.1941, unlocked on scenario start

Here is his picture :

I meant I haven't found Günther in the scenarios of the BK and PK campaigns.
I've also not checked for every (hidden) objective if there is any commander unlocked. Just tell me if something is missing in the list.

Günther Rall :
Response : PK 07, Caucasus , Secondary objective = Destroy 6 Soviet air units

The editor shows me Gerhard Barkhorn in PK07, Caucasus, under the "Establish air superiority" objective.
I also forgot Barkhorn appearing in Dunkirk.

Updated with Sandstorm and Endsieg content.