Arknights Wiki

The Drill Plan is a gameplay element in Arknights.


A plan used for tactical drills. Use it on the operation interface to simulate a battle so you can make plans accordingly.

Haste makes waste. For Rhodes Island, every operation has the potential for a loss of life. Therefore, it is wise to drill before actual combat, long before we run into an enemy ambush.


Starting an operation with a Drill Plan won't consume Sanity, but no rewards will be given out.
—Loading screen tip

The operation start button's appearance for the Practice Mode

Knowing is half the battle. The saying is true for Rhodes Island, who often issues a combat drill for their Operators before the actual combat so that the Doctor can adjust their strategies and deployment to ensure victory and minimizing casualties.

One Drill Plan can be used to run operation, with the exception of training, free, Annihilation, and Contingency Contract operations in Practice Mode which does not consume the player's Sanity.png Sanity, but does not yield any reward and are not counted for missions' progress as well as giving out Credit.png Credit in case the player uses a Support Unit, so that the player have a grasp on what they would face during the operation and plan their deployment orders and squad lineup better before spending Sanity to actually run the operation.

The Challenge Mode of an operation costs three Drill Plans instead of one to run its Practice Mode.

There are 30 Drill Plans available which is replenished daily, so feel free to spend them either for training or demonstration/casual runs.


  • Along with Event Crystals, even though Drill Plans have their own item artwork and description as shown at the top of this page, it is not possible to actually view them in-game.
  • Even though some the Heart of Surging Flame side story missions cost no Sanity, it is possible to spend Drill Plans practicing them, which is highly discouraged. This is because they previously awarded tickets that could spent to play other operations from the event, but since they do not award anything anymore, their cost has been set to zero, making the drill option redundant.
  • While it is normally impossible to run Practice Mode in Auto Deploy, it actually can be done by pressing both the Drill and Start buttons simultaneously, which is difficult to be done especially in emulators.