Tishina

The Tishina is a 30mm grenade launcher featured in Call of Duty: Black Ops. It is the grenade launcher for the AK74u, and is similar to the GP-25 in the fact that it is muzzle-loaded and requires it to be loaded before the grenade is placed inside the barrel and can then be fired.

Tactics
Tactics remain the same with other grenade launchers, as the Tishina does the same damage as other grenade launchers. The main difference is that the Tishina is attached to the AK-74u, an SMG, which has different applications to assault rifles on which the other grenade launchers are mounted. It also lacks a contact fuse, so its projectile can bounce off solid surfaces. Due to the Tishina being available for a single weapon, and that weapon being one that is frequently with aim-enhancing attachments or special magazines, this is a rare sight in Multiplayer, but is equally as deadly as an assault rifle grenade.

Trivia

 * This is the first grenade launcher in the Call of Duty series that is mounted and usable on a submachine gun.
 * The grenade loaded in the Tishina is noticeably smaller than the 40mm grenades the M203 and GP-25 use; however, this difference has no effect on gameplay.
 * The barrel is extremely long and may be the longest grenade launcher barrel in any Call of Duty game.
 * This extra barrel length is due to the fact that there is a suppressor on the grenade launcher, although it does not function to silence the launcher in-game.
 * 'Tishina' is a transliteration of the Russian word тишина, meaning "quiet".
 * When reloaded it is possible to see that the launcher has a bolt action. The bolt can be clearly seen beside the tube.
 * In the early stages of the games release, the bolt action was on the right side of the weapon.