The terrain is based on Riemer’s excellent “multitextured terrain” tutorial. This is strongly recommended for any developer looking at clever multitexture techniques. http://www.riemers.net/eng/Tutorials/XNA/Csharp/Series4/Multitexturing.php

The code is a little old, it predates the XNA 4.0 framework so some bits need tweaks to enable it to compile.

Simple control added with the ability to control the pitch and yaw of the guns.