When we first started to create the original proof of concept level for our engine, our designers asked for a destructible bridge that did not consist of the usual collection of prebroken pieces that always came apart the same way, but something that broke procedurally using physical modeling. When we eventually saw the pillars of the bridge collapse dynamically with C4 charge explosions, I knew we had something special and innocently asked, "What about the trees?" After a moment of stunned silence, where everyone was collectively thinking about just how many trees there were in our levels, the consensus was that we had to try. Then, when we saw how much the public enjoyed mowing down the trees during the game's public unveiling at E3 last year, we knew we couldn't stop there and had to try to make as much in the game as possible destructible in some fashion.