developing mod package installs / edit source code ? / 3DMapperCube idea

[flowtron]

mikebefore: you need to put an informational-file into the package too though, that at least - saying you've based this off AssaultCube (and where to get the original) and listing exactly what you changed.
If you change stuff in the source-code you need to mark those sections clearly too - that's the basic deal of the licensing.