The Mortar Team strikes three areas on the map, each selected before the strike is called in. Two mortar rounds are fired at each target and the explosion is about seven meters in diameter. It takes a few seconds for the mortars to start firing after the locations are chosen, so anticipation of where enemies will be instead of just where they are now will ensure the most kills. In objective based games, it is also useful to place the mortar strikes on the objectives, as this is where the enemy will be headed most of the time. Another good strategy is to place the strikes on an enemy team's spawn area 

Trivia 

• Mortar Team is the spiritual successor to the Artillery killstreak from Call of Duty: World at War.
• The earlier killstreak menu image looks like an Artillery shell from Call of Duty: World at War.