This was a popular level for Day of Defeat version 1.2 and 1.3, it was downloaded atleast 30,000 times from a few major sites I watched, but I did not update it to work well with future versions after version 1.3b. Still, there is actually a v1.3b revival project if you are interested in playing this still. The allies take the TNT to destroy the plane prototype, and the axis must defend the base, keeping hold of the flags.
Day of Defeat Source, updated for half life 2, is coming out soon, so I may update the level to work with this latest Day of Defeat. I have loaded it back in the new Hammer editor and pushed out some boundaries, it could be a very fun level again.
After I stopped work on the level, I released the .map files and an updated v1.3b version that was never widely distributed. There are more extensive notes in the zip.
Download dod_airbase .map and information
Really, really old screenshots, I must have been in tenth grade
Funny how unbalanced the score was, anybody could get easy points by capturing the flags. I think I'd actually be more proud of my ping in this last screenshot.. I was limited to a 28k connection back then.