Where to get gunnery map?

[Terrible]

I am looking to do some practice with buff guns and I downloaded some missions but it tells me I need to choose the gunnery terrain from the main menu but I don't have the map and I don't know where to get it

any help?

[The Fugitive]

The best way is to login to the game and instead of going to one of the arenas select "custom arena" When the setup window opens use the drop down box to select the gunner terrain. and hit ok/build. When it makes the arena for you you'll download the map automatically.

Then close out the arena and log off. When you start the game select the terrainr and you'll find the gunner map available.