Semtex

The Semtex is a lethal anti-personnel weapon featured in Call of Duty: Online.

Call of Duty: Online
"Adhesive grenade, sticks to the target surface and detonates shortly afterward."

- In-Game Description

Multiplayer
The Semtex is unlocked at level 4 and costs nothing to equip. The grenade is actually a lump of C4 coated with an adhesive substance and with a timed detonator attached to it. The semtex has a three second fuse and can be thrown and primed faster than a frag grenade.

The Semtex is ideal for precision targeting. Stick one to a target and they can't avoid blowing up. You can also tag the Semtex to walls as enemies prepare to turn a corner for an explosive surprise attack. This is a great tool for clearing enemies from objective points, as they're unable to toss the Semtex back.

Trivia

 * Semtex will not explode in one's hand when cooking. But can be shot by an enemy.