How do I implement zUFLAK in the game

[Ulrich Kröpke]

I want to put a few Flak-U-Boats "zUFLAK" in the harbour of Brest. I can see the boats in the Mission Editor 2. But even when I start in "The black pit" a new carrier I don´t see this boats in the game.
When I look in "SH5/data/Land" I see bunker and turrets but no Anti aircraft guns(In german:Flak). It would be nice if this Flak guns could be created from somebody who knowes how to do.