Sidearm

Sidearms in the Halo Universe are a class of weapons that play both a primary and secondary role in combat.

=List of Sidearms and their strength=
 * M6 Pistol (GoO: Unknown)
 * M6D Pistol (Halo: Strong / Halo 3: Unknown)
 * M6C Magnum (Halo 2 (Pre-Update): Weak / Halo 2 (Post-Update): Very Weak)
 * M6B Pistol (GoO: Unknown)
 * Energy Sword (Halo 2: Very Strong / Halo 3: Unknown)
 * Needler (Halo: Average / Halo 2: Very Weak / Halo 3: "Strong")
 * Plasma Rifle (Halo: Strong / Halo 2: Weak / Halo 3: Unknown)
 * Brute Plasma Rifle (Halo 2: Average)
 * Plasma Pistol (Halo: Average / Halo 2: Very Weak / Halo 3: Unknown)
 * Brute Spiker (Halo 3: Unknown)

=Modern definition= A side arm is a small personal weapon that is typically worn on the body in a holster in such a way to permit immediate access and use. Although this term can apply to swords and other melee weapons, the modern use of it usually pertains to pistols and similar firearms.