The Spanish Civil war Campaign
Sides:
Republicans (government, aided by U.S.S.R), Nationalists (Rebels, aided by Nazi Germany and Italy)
Locations:
Battle of Ebro: It was the biggest and longest battle of the Spanish civil war making a good idea for map/battle location
Here is a picture of the landscape, Its a mountain-y terrain and very dry:
Siege of Madrid (The nationalists would be the attacking side) This would be a good choice since it was a long battle and different to the mountain wilderness of the Battle of Ebro as it would be completely urban.
Weapons:
(the weapons could be mostly the same since its a civil war and the rebelling side would use captured weapons)
Republican weapons:
Source:List of Spanish Civil War weapons of the Republicans - Wikipedia
Mosin-Nagant
Lee Enfield
Berthier rifle
Nationalistās Weapons: (weapons given by Nazi Germany)
Source:List of Spanish Civil War weapons of the Nationalists - Wikipedia
Mauser Model 1893
Gewehr 98
Mannlicher M1895
Planes:
Republicanās planes:
Source: List of aircraft of the Spanish Republican Air Force - Wikipedia
I-15
I-16
Nationalistās Planes:
CR-32
Bf-109b
I couldnāt find whether the nationalists were given these planes for the war but in the source for republican planes, its said these were captured so I believe these will be ok to add.
Republican Tanks
Bt-5
Renault FT
Nationalist Tanks
Panzer 1
L3 (sorry)
Source:List of tanks in the Spanish Civil War - Wikipedia
I realize this isnāt WW2 , but I think it could be a very neat campaign, Imo I think itāll be better if it were only infantry fighting, and not support by vehicles.