Title kind of says it all. Aiming anywhere near a target’s head with the thrust attacks from kerillian’s spear and kruber’s halberd does not register as a headshot. Getting it to register requires aiming clear above the target’s head and making your thrust visibly miss.
Example: this is not a headshot, despite aiming at the center of the target’s head and the spear visibly going through it
Neither is this
This is how high you have to aim to actually get a headshot. Note the spear visibly misses the target by a good foot.
Kruber has the same problem, again despite his weapon visibly going through the target’s head.
Seems kind of ridiculous to put the weapon through an enemy’s face and have the game call it a body hit, while attacking the empty air above the enemy’s head gets you “headshots”.