Reiji was taking things a bit too easily, since that 9mm could have easily gone for his head instead of an ornament, but I don't think killing Scythe is as easy as it sounds. They're two assassins, but they no longer had the backing they once did. Before they had connection, intel and money from Inferno to back them up in their operations. Now, they've not only lost that, but it's the very power they're up against. While Kraco's got a point that Inferno may not be actively pursuing them, they've probably got a kill-on-sight, or at least report-on-sight order for them, forbidding them to get too close.
On the other hand, this episode did nicely in portraying the effect this all had on Reiji's life. The first segment felt almost too good to be true, only to be brought back to reality with the all too familiar firearm. (I was actually in emotional conflict for the first half. Elen as a sister only? NOOOOO!!! ---> but that's all good now)
I remember Kraco saying how he wished Zwei would break after Elen died during the second arc. We never got that, but I feel Cal would be the closest thing yet to a crazed killer. Scythe hinted at some other creations of his, but those seemed to be mere killing puppets without the feelings the first three Phantoms possessed.
Cal's proportions are. Her unnatural maturity is bordering on being uncomfortable to watch/see. Ah well, with McCunnen dead they'll need someone to take over those big boobs.