Mortar Round

Mortar Rounds are explosives that the player can obtain in the Campaign of Call of Duty: World at War.

Overview
They are only found in the levels Burn 'em Out and Breaking Point. Picking one up from mortar crates results in the player's character striking the tip of the mortar shell on a hard surface, effectively priming it. The mortar round can then be thrown, resulting in an incredible explosion. They are used as a means of destroying the multiple Japanese outposts. They are extremely powerful and have a large blast radius - probably the reason they were not included in multiplayer. They are found in mortar pits. Mortar rounds can also be used to blow up buildings and can become a great advantage if the player is caught with no grenades because they are deadlier and more explosive than grenades, and are extremely effective. Some people take them with them when leaving a pit to enter the next area. They detonate when they come in contact with anything so use them carefully.

Killing eight Japanese soldiers with a mortar round will earn the player the achievement "Mortar-dom", which earns 10 (Xbox 360) or a Bronze trophy (PS3). The achievement's name is a reference to the Martyrdom perk.

Trivia

 * The player can melee with the Mortar Round. To make it work, the player must have the Mortar in their hand and get attacked by a banzai and survive, when the player melees the crosshair disappears and it takes 3+ hits to kill.
 * When playing Online Campaign and the player's friend is down, the player can throw a mortar round instead of shooting them to get them back up. This conserves ammo and can only work when the Death Card, Painkiller is activated.
 * Mortar rounds have English lettering on the side despite the fact that they are Japanese.
 * The Mortar Round originally seems to have been planned to be featured in multiplayer, as there is a file named "mortarround_mp".
 * These is a reference to the movie Saving Private Ryan where two US soldiers use mortar rounds against a German counter attack when they run out of grenades.
 * In Call of Duty: Black Ops the mortar round's model is re-used in the mission "Project Nova".