Call of Duty: Modern Warfare features the Gunsmith feature, which allows players to customize their weapons. One way that Modern Warfare players are able to customize their guns in the game is with weapon charms, which are unlocked in a variety of ways. Out of all the Modern Warfare weapon charms, though, one of the most popular is by far the Helpful Doge charm, which is epic-tier and quite challenging to unlock.
To unlock the Modern Warfare Helpful Doge charm, players need to make sure that they've selected the multiplayer mission Best of the Best. With that as their active mission, players will need to complete the first four objectives to reach the Helpful Doge objective, which is to get three fury kills. Fury kills, for the uninitiated, refer to four rapid kills in quick-succession. Essentially, players have to get three quad kills if they want to unlock the Helpful Doge charm.
While this seems especially difficult, there are ways to make it a bit easier. YouTuber Ballistic recommends that players play Ground War for this challenge, as players can reach the enemy spawn point and hide out, shooting them as they walk by. But there have been updates to Call of Duty: Modern Warfare that makes getting the Helpful Doge charm even easier than it was at launch.
Perhaps the best way to get the Helpful Doge charm in Modern Warfare would be to play the Infected match type. As long as players make it to the end of a match as a survivor, they should have plenty of opportunities to get fury kills. Infected matches end with swarms of enemies charging the remaining survivors, and while players may not last all that much longer, they should be able to get at least a fury kill or two in the process.
Something else to try would be playing on the smaller maps that weren't in Modern Warfare at launch, like the Call of Duty 4 map Shipment or Shoot House. These smaller maps lend themselves well to players racking up a lot of kills at once, and so players have been using them to get the Helpful Doge charm as well as complete other challenges in the popular FPS.
This doesn't have to be done in a single match, so Modern Warfare players can just keep trying if they fail to get all of the fury kills. With enough persistence, they should unlock the Helpful Doge weapon charm in Modern Warfare eventually.
Call of Duty: Modern Warfare is out now for PC, PS4, and Xbox One.