Half-Life: Sven Co-Op Crate Attack Trailer
A lot of work has been done recently to calculate where an NPC should shoot at a breakable object. Arbitrarily shapped objects that level designers may create are no problem for the system. Having monsters be able to attack breakable objects will
This Video shows off monsters being able to shoot and destroy crates. You will see a few barney's destroying multiple normal crates, a few explosive crates and some barrels as well.