Writing from Switzerland, Europe, I've seen this episode just yesterday.
I agree with sherriesim.. Ellie should have shot Brass. I thought 'what are you waiting for now, you just killed your mom'.
But, besides all the bloody killings, what did Nick say to Brass when he found Matt? 'He's dead, Jim!' And this short sentence, for an old trekkie like me, is always good for a short laugh, even if it wasnt' intended..