ZDoom has lots of features, but it's not too easy to edit and create new stuff for it, Vavoom engine allows us to modify and create a mod like KA without the need of compiling an executable for it, besides, we have the Vavoom engine's author in our team, that's a big advantage, because he will help us out whenever we need to know something from the engine and it's features, and when we really need something implemented in the core of it, he'll add it without hesitation, making development easier for us all <!-- s8) --><img src="{SMILIES_PATH}/icon_cool.gif" alt="8)" title="Cool" /><!-- s8) --> .