==========================================
Is this the tutorial, then how can you making custom maps for BombBalls mod.
First: center, you put a wall, to be seen on the wall. (mesh etc.)
so you get 2 half-space. add barricade or other objects.
add tdm spawnpoints both field.
spawnpoints center of field (not where is the wall!)
add germany - american soldier with normandy uniform (both)
add to mp_"yourmapname".iwd/mp/mp_"yourmapname".arena file and add: gametype "tdm bombballs"
I hope, you understand.
===========================================