Western Front
Dinant - Belgium 1940 - German vs French/Belgian
Pegasus Bridge - Normandy 1944 - British vs Germans
St. Mere Eglise - Normandy 1944 - Americans vs Germans
A Bridge Too Far - Holland 1944 - British vs Germans
{Death at Elst - Holland 1944 - British vs Germans}
Singling - Lorraine 1944 - Americans vs Germans
Kampfgruppe Peiper I - Belgium 1944 - Germans vs Americans
Kampfgruppe Peiper II - Belgium 1944 - Germans vs Americans
Hatten In Flames - Alsace 1945 - Germans vs Americans
Operation Veritable - Rhine 1945 - Canadians/British vs Germans
Eastern Front
Red Barricades - Stalingrad 1942 - German vs Soviet
Red October - Stalingrad 1942 - German vs Soviet
Valor Of The Guards - Stalingrad 1942 - German vs Soviet
Slaughter At Ponyri - Ukraine 1943 - German vs Soviet
Festung Budapest - Hungary 1945 - German/Hungarian vs Soviet/Hungarian
Mediterranean Front
Primosole Bridge - Sicily 1943 - British vs Germans/Italians
Ortona - Italy 1943 - Canadian vs German
Pacific
Operation Watchtower - Solomons 1942 - Japanese vs USMC
Hell's Corner - Solomons 1942 - Japanese vs USMC
Sand and Blood - Solomons 1942 - USMC vs Japanese
Suicide Creek - Solomons 1943 - USMC vs Japanese
Blood Reef Tarawa - Tarawa 1943 - USMC vs Japanese
Manila - Philippines 1945 - American vs Japanese
Kakazu Ridge - Okinawa 1945 - American vs Japanese
CBI
Nphum Ga - American vs Japanese
Fairly informative stats, aren't they? Aside from 5 out of 25 being USMC (!), and the PTO preponderance, there are other favoured topics - paradrops (4/25), Stalingrad (3/25), Solomons (4/25, though you could argue 3 are Guadalcanal/linked and one is not). Nationality wise: German (15), Non-USMC American (7/25), Commonwealth (6/25), USMC (5/25), Soviet (5/25), with Allied Minor, Axis Minor, and Italian guest-starring once each.
Now, of course for a HASL to sell (in the numbers MMP needs), the subject must be broad and popular and perhaps "funky" at the same time. It also has to provide actions where multiple actions happen on the same map over a non-trivial stretch of time. (That said, a Mini-HASL in a big box or a magazine can afford to be slightly more niche - thus Dinant). But it's still interesting that there are two Canadian projects (one published, one in late dev), but no ANZAC ones. Allied Minor and Axis Minor turn up as junior allies (in Dinant, very junior - useful Belgian Cavalry companies on the random reinforcement option). Italians similarly are pretty peripheral (one Primosole CG). The Chinese may eventually get their Marco Polo Bridge module, but nothing else so far.
Of course finding actions for those is more of a challenge, perhaps (except the Chinese), but the anabasis of the ARMIR in 1943 might provide...or, indeed, the brave three-day defence of Rome in September 1943 by Ariete II and the Granatieri di Sardegna. Narvik has been suggested elsewhere which would give you British, French, AND Norwegian. Slovak Uprising for Axis Minor, perhaps (though I don't know how far they fought multi-day battles). British and Indian at Imphal or Kohima. ANZAC at Buna, Tobruk, Crete.
The biggest obvious exclusion is the DTO, of course - am I right in thinking the only DTO HASL is Brevity Assault from AF? That solves the problem of large-scale war of manoeuvre by inserting the HASL tactical action on to an operational map. DTO-wise, the most obvious actions are static ones - Tobruk, Supercharge, Mareth Line.
