1/72nd: 1918. The war is ending & some pilots want more glory. Allies vs Germans with the best aircraft of WWI. Enhance your reputation before the war ends.
1917: Austrian flyers have a very interesting selection of planes: Albatross DII, Berg, Siemens Schuckert D1. RAF flies French types. Fly a 1917 fighter of your choice over the Edelweiss.
1957: Ike stops the Suez war but orders recon flights by the Century Series fighters. Egypt uses Russian Migs to keep its secrets. Fly a 1957 fighter to see which is the best gunfighter.
1933: The RAF AW Siskin has replaced the Bengal Lancer. In a warlord conflict in "Somestan" they fly into action. The opium market allows warlords to buy the latest fighters. Fly a 1927 biplane.