The Executioner Stormtrooper sounds like he is going to be a bad dude. From the description on the back of the packaging, it sounds like this is the Internal Affairs division of the Stormtroopers, but with this guy being the judge, jury, and executioner. This does not bode well for the Stormtroopers that cannot stay in line.
This Target Exclusive figure is a repaint of a standard First Order Stormtrooper. There is a matte black stripe on the helmet, and black shoulder pads. From there, he is given a special axe with which to dispense justice for the First Order.
The standard Stormtrooper came with two guns. This guy has the leg port of the smaller blaster, but was not included. That is too bad. I would think he would carry one even though he has a special weapon as well.
The black color added here and there gives quite a different look to the trooper.
Side by side, it is clear that these two are one in the same. They may be different branches of the same military, but it would be expected that an Executioner would run around in nearly the same armor as the standard infantry.
Other than the few paint apps, there are no differences between the two sets of armor.
One interesting note is the one black sole and one white sole on the boots. That is a funny thing to include, but the black sole is on the same side of the body as the black marking on the helmet.
Together to take back the galaxy. That is a lot of white and black going on here. The other four better worry, because while they are looking at the enemy, the Executioner is looking at them.