Commando

Commando is a Fallout 3 Perk.

While using a rifle (or similar two-handed weapon), your accuracy in V.A.T.S. is significantly increased. This perk increases your chance to hit by 25%. As with all perks that increase your chance to hit in V.A.T.S., this bonus is multiplicative, not additive.

Weapons Affected
The following weapons are two-handed ranged weapons and are affected by Commando: Note: The upgraded version of these weapons (Lincoln's Repeater, A3-21's Plasma Rifle etc.) are also affected by this perk.
 * R91 Assault Rifle
 * Red Ryder BB Gun
 * Chinese Assault Rifle
 * Combat Shotgun
 * Hunting Rifle
 * Lincoln's Repeater
 * AER9 Laser Rifle
 * Enclave Plasma Rifle
 * Railway Rifle
 * Sniper Rifle

Needs verification
The following weapons are two-handed ranged weapons, but may or may not be affected by Commando and need to be verified:
 * Fat Man
 * Flamer
 * Gatling Laser
 * Minigun
 * Missile Launcher
 * Rock-It Launcher
 * Gauss Rifle