Half-Life: Blue Shift/Weapons

Crowbar
The crowbar is a bit of a trade mark within the the Half-Life series. Although its mostly there to get you by when ammo is in short supply, you can also use the crowbar for more practical things like breaking windows/crates. Useful on the headcrabs.
 * Primary Fire: Crowbar swing

Glock 9mm Pistol
Not as powerful or as quick firing as other weapons but good for hitting things at a distance.
 * Primary Fire: Single shot
 * Secondary Fire: Rapid fire

.357 Magnum
Considerably more powerful than the Glock, usually one shot, one kill. Low clip capacity.
 * Primary Fire: Single shot
 * Secondary Fire: Zoom

Assault Shotgun
A semi-automatic assault shotgun that loads from the bottom. Good for close quarter battles.
 * Primary Fire: Single shot
 * Secondary Fire: Double shot

M4 Assault Rifle
More powerful than the Glocks' rapid fire and a bigger clip. One of the main weapons of the game.
 * Primary Fire: Rapid fire
 * Secondary Fire: "On-contact explosive" grenade

Hand-Grenade
3 second timer, the longer you hold it the less time before it goes off.
 * Primary Fire: Throw grenade

Satchel
More powerful than the grenade, but with less range. Good for throwing into foxholes, windows or doors.
 * Primary Fire: Throw satchel
 * Secondary Fire: Detonate

RPG (Laser-Guided Rocket Launcher)
Rockets will fly towards the laser target, or in a straight line when it is switched off. Good for bigger enemies.
 * Primary Fire: Launch rocket
 * Secondary Fire: Switch laser on/off