This is a TDM I was hosting a while ago. The first, I beleive, to have defined objectives. Based on WWII.
Class chooser. There's another one with the Axis Eagle Flag for the Germans.

Overview.

Depot.

Gate.
Edit: Constructive critCIAm/ suggestions are appreciated.

Railgun.

The Axis forces have to first bring a tug filled with ammunition to the depot where the two other tugs are waiting. Those tugs, once loaded, must be driven up to the railgun, thereby delivering the ammunition. The gun must then be fired by touching the controls. The Allies must stop them from doing so over a period of 15 minutes. (This concept was a little difficult to pound through the thick skulls on 8k + IDs. Sorry for the stereotype.)