Für eine deutsche Version lädt des onscreen Missionschriftart das Folgende und stellt es in die Ebenen/Eben_Ein Ordner im Mod ersetzend der Existieren Ein (For a German version of the onscreen mission script download the following and put it in the Levels/Level_One folder in the Mod replacing the existing one)
German mission script (Deutsche Missionschriftart)
Click here to download Airfield English version of onscreen messages and mission objectives
Replace the airfield.lua that comes with the game with this one to get the onscreen messages and tabbed objectives in English. Note I had nothing to do with this game I just used Babel to translate so I could play the game, this translation was done without the authors' knowledge and I hope he doesn't mind! It's a zip file.
Thanks to Murphys_Law the "White-Out" bug experienced by some people playing sp_arena (v7) on nVidia cards has been fixed. This bug caused all the background over about 10 metres to appear as white. This appears to be a problem nVidia cards have with some of the environment settings in Sandbox 1. Download the patch here