[stellarmagic]

How difficult would it be to create a new artillery piece to be added in game? I figure it'd be an easier point to start from to learn how to model and modify the game. Looking through the different artillery pieces in the game already I figure that some of these would be pretty useful objects.

Nebelwerfer (Towed)
Sdkfz 251 Mortar Carrier
Grantwerfer
Flak Tower
Infantrymen

So if I wanted to make some of these what programs would I need besides a 3d editing program and a Java compiler?