“Most interesting of the desired features, however, is the development of Capcom’s own physics system to replace the Havok middleware that it currently uses. ”

Explaining the decision, the page states that “Although middleware might increase efficiency, language discrepancies, response times for support/bugs and the loss of understanding on how our entire engine is structured leads us to feel that we get better results in a shorter period by developing our own engine.”

http://www.developmag.com/news/28512/Capcom-looking-to-expand-in-house-engine