Technically, Skill is a set roll and abilities don't exist; they're specialties.
I changed the Skill thing to a specialty called 'head hunter'. It reads as follows: "Head Hunter(+5CP)
: On the attack roll of using a ranged weapon, a Sniper need only flip a coin to determine success. On heads, the shot hits and kills unless the target is a Hero or wearing a helmet. If they are, another heads must be tossed to kill.
On the topic of 30" range, I've decided to add a weapon like the Ninja's
katana. I need cost, use, damage, range, and size.
EDIT: There's also that paranoia thing. I think he should be able to take a turn off to calm his nerves/ re- and disassemble his rifle to calm down. If you want it differently, say so.
EDITATION: I also have to take non-sniper rifle guns into consideration, though it would be blasphemy not to equip your sniper with a proper rifle.