So I dont know if you were able to break crates / boxes by shooting them in 9.9.6 or not, but I just discovered I could do it tonight. So damn cool. Levels filled with crates are my new best friend, nothing like finding med kits, armor, and boxes of shells just sitting there hidden :)
Also, Scout + GunRunner + Dualgunner + really good pistols = omg. I found one combat pistol, im not sure if its possible but if I get a second, its on.