Satchel Charge

Satchel Charges are explosive demolition packs used by the United States HECU in Half-Life.

Usage
Satchel charges are basically very large grenades. They're useful for destroying hard points and vehicles, and for clearing debris. They're larger and heavier than hand grenades, and can't be thrown as far, but result in a far larger explosion. Pressing the primary fire button drops a single satchel charge, then the detonator will be automatically equipped. You can then either detonate the satchel charge with the primary fire button or drop additional satchels with the secondary fire button. If you've dropped multiple satchels, pressing the detonator will detonate all of them.