HOT

HOT or Healing Over Time is a feature in all of Call of Duty games that heals players when they're severely damaged. In the latest Call of Duty games, damage is shown blood splats onto the screen. The HOT was created to avoid using other healing methods such as using medkits.

More information

 * Lately, almost all games features the HOT, while other games begin to use it such as Medal of Honor 2010. Other game where HOT features is Brink.
 * When Hardline perk is upgraded to Elite, the HOT shortens and allows the fast healing.