Modern Warfare 3 engine adds a lot of "new and cool stuff"

Speaking on Twitter in response to a question concerning the MW3 engine, Infinity Ward's Creative Strategist and Community Manager Robert Bowling stated that the Modern Warfare 3 engine adds "a lot of cool stuff to the game" and that Infinity Ward had "moved beyond" the engine used in MW2. One rumor that has been floating around is that MW3 will have destructible environments. At this moment in time, the addition of "destructible environments" is only speculative as most of MW3's details have yet to be revealed.