According to what I've read they are using the Doom 3 engine, and by the looks of how many charcters are on the screen on this one I think it's safe to assume that they've tweaked the engine to run better with more charcters on screen.
thier uniforms are way too dark, the tunics werent that dark at all
thats a new job for you then when its released biggrin:
and gerv why should they use the q3 engine ? the first game was made on it , and they wanted a better engine so they relly used a better one (like doom3). They better used hl² engine, i think its much better.