Great start to the season. Well oiled zombie killing machine is right. I think there was not a word of dialog while they took that first house at the beginning.
I really liked the show, but it is still bugging me the waste of ammo, especially after Rick locked that gate. It seemed like killing the zombies through the fence was working just fine! Lure them to the fence and attack through it. Daryl's arrows were no match for the zombiefied guards in riot gear. Ha!