Rather than inventing a Man-At-Arms profession, maybe make alternative professional packages? Here's one for a martial artist more focused on weapons.
ALTERNATIVE MARTIAL ARTIST II
50 points
This Martial Artist II package is for martial artists who specialize in using “monk” weapons – kama, kusari, nunchaku, quarterstaff, sai, siangham (short spear), and shuriken.
SECONDARY CHARACTERISTICS: +1 Basic Move [5].
ADVANTAGES: Weapon Master (Monk weapons) [30].
SKILLS: Three points in Acrobatics, one point in Meditation, in one of your secondary weapon skills.
CHI SKILLS: Weapon Master does not give access to the full range of Chi skills. Put two points each into five of the following skills: Blind Fighting, Breaking Blow, Immovable Stance, Kiai, Parry Missile Weapons, Power Blow, Push, Throwing Art. If applicable, these work only when you are wielding a monk weapon.
SECONDARY WEAPON SKILLS: Crossbow, Throwing Art, Thrown Weapon (Knife, Shuriken or Spear).