This issue was a little lack luster for me.  That's not to say it was bad, it was just not as good as the last three issues.  This issue basically set up a plot change where Zack seems to switch sides again, although he doesn't have a choice.  My favorite moment in the issue was probably were he realized he got his co-worker killed and actually mourned a little for the guy.  Phillip's continues his art duties on the book and it couldn't be better.  His noir style art fits so perfectly.  Even if this issue just progressed the plot a little, it has set up what is sure to be a great two final issues.