Players drop their dogtags upon death, appearing bright yellow for the killer's team and as bright red for the victim's team. The player's team gets a score for confirming the kill by collecting the dogtags, which awards the killer 50 XP (alongside the XP rewarded from the kill) as well as the player who confirmed it. The player may also deny teammates' deaths in the same fashion for the same 50 XP (250 XP if the tags were the player's own), but denying a kill does not add to the team score. However, it prevents the enemy from confirming it. Collecting a dogtag does not contribute to the player's Pointstreak.
By default, 65 tags are required to win, however, 90 tags are required in Ground War. Alternatively, the team which has most tags if the time runs out wins. The tags disappear if they are not collected quickly enough, or if the player who dropped them either dies again or quits the game.
Dog Tags in Modern Warfare 3. Note that the dog tags say "Simon 'Ghost' Riley".
Call of Duty: Black Ops II
Kill Confirmed reappears in Call of Duty: Black Ops II as it did in the previous installment, with slightly changed settings. Similar to Call of Duty: Modern Warfare 3, enemies drop dogtags that appear bright yellow upon death, which provide a score for the team if collected, known as confirming the kill. If a teammate drops a dogtag, it appears as bright red, and if collected, the kill is denied, which prevents the enemy from confirming it. However, the player now gets 50 points for killing an enemy and 100 for confirming a kill, both of which will go towards the player's scorestreak. If a teammate confirms it, the player who killed the enemy gets 25 points. Denying the kill gives 25 points, and if the dogtags were the player's own, a Retrieved medal is awarded. Additionally, the dogtags will disappear if not collected quickly enough, and 100 confirms are required to win.
Dogtags in Call of Duty: Black Ops II multiplayer. Note that the tags say "VIKTOR REZNOV".
Kill Confirmed appeared in Call of Duty Online for a time, but has since been removed.
Call of Duty: Ghosts
Kill Confirmed returns in Ghosts. The rules remain the same as in Modern Warfare 3: the first team to confirm 65 tags within 10 minutes wins. Enemy tags appear orange, while friendly tags appear blue. Some tags may disappear if not collected quickly enough. After a patch, collecting tags now counts as half a point towards the player's strike chain instead of one point.
Call of Duty: Advanced Warfare
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Kill Confirmed once again appears in Call of Duty: Advanced Warfare. The rules are completely unchanged, as the first team to score 85 points wins the match. Killing an enemy player awards 50 points, picking up an enemy/friendly tag awards 50 points and if a player confirms a kill made by another player, both of them will be awarded 50 points.
""Recover dog tags to score for your team and deny enemy scores.""
— Official description
Kill Confirmed returns in Call of Duty: Infinite Warfare. The dog tags are colored red for when the enemy team drops them, and blue for when the friendly team drops them.
The score limit has been changed from 85 tags to 100 tags. The time limit is 10 minutes.
Infinite Warfare playlist icon.
Call of Duty: Modern Warfare Remastered
Kill Confirmed returns in Call of Duty: Modern Warfare Remastered. The score limit is 65 and the time limit is 10 minutes.
On 10th February, 2017 to 13th February, 2017, a derivation of Kill Confirmed was available in the Weekend Warfare playlist where tags replaced kills in obtaining killstreaks, called Streaks Confirmed.
Modern Warfare Remastered playlist icon.
Call of Duty: WWII
Kill Confirmed returns in Call of Duty: WWII. The score limit is 65 and the time limit is 10 minutes.
"Eliminated enemies and teammates will drop dog tags. Collect enemy dog tags to earn score for your team while collecting teammate's dog tags to prevent the enemy team from gaining score. The first team to reach the score limit will achieve victory."