List of Skills:
HANDGUN+ : 1 slot per level
SMG+ : 1 slot per level
ASSAULT RIFLE+ : 1 slot per level
SHOTGUN+ : 1 slot per level
SNIPER RIFLE+ : 1 slot per level
HAWKEYE : 1 slot regardless of level
SURVEYOR : 1 slot per level
QUARTERBACK : 1 slot regardless of level
TRICKSTER : 1 slot regardless of level
CQC+ : 1 slot per level
CQC EX : 4 slots
BLADES+ : 1 slot per level
SHIELD+ : 1 slot per level
RUNNER : 1 slot per level
BOX MOVE : 1 slot per level
SOP STEALTH : 1 slot per level
QUICK RECOVERY : 1 slot per level
MONOMANIA : 1 slot regardless of level
SIXTH SENSE : 1 slot regardless of level
NARC : 1 slot per level
SCANNER : 1 slot regardless of level
SCANNER EX : 3 slots (there is only Master level)
INSTRUCTOR : 1 slot (there is only Master level)