The automated Friendly Fire and Team Kill system was first introduced into World of Tanks back in April 2011, since its introduction there has been many tweaks and adjustments so it's time for an update of how the system works.

Friendly Fire Tracking.
There are two systems for the tracking of Friendly Fire;
A Global Rating which tracks Friendly Fire from the account over a period of time, and a Local Rating which tracks Friendly Fire within a specific game.
What Counts as Friendly Fire?
All instances of Friendly Fire & Friendly Damage are tracked, except the following.
- Self destruction / Self damage
- Damaging of a player whose local status equals “Team-killer” (They are "Blue" in game)
- Damaging of a player within the Training Room.
Friendly Fire Weighting.
Every Friendly Fire shot is not equal.
The auto system takes a huge number of factors into consideration to determine whether a friendly fire shot was accidental or deliberate and each shot is weighted accordingly.
For example Friendly Fire in or within the cap zones are weighted very heavily, similarly are multiple instances of friendly fire.
Ratios are also taken into consideration comparing friendly damage to damage done to enemies. Both locally (this game) and globally (recent gaming history)
Friendly Fire Sanctions.
Depending on the ratio's and thresholds mentioned above. when a player reaches a threshold they will turn "Blue" in game and can then be shot/killed by allies without that effecting the retaliatory FF/TK ratio's.
Slightly above the threshold for turning blue, is the Ban threshold, which once reached will result in a game ban placed on the offender.
It is very common for a player to turn "Blue" and then also be banned, it is also very common for a player to reach one of the ban thresholds and be banned without ever turning blue.
Blue Status.
As described above, the "Blue" status is a small section between being a normal account and being banned for excessive friendly fire.
If you have reached this "Blue" status in game, please note that your account is bordering on game bans being placed.
How long does the blue status last? It will last as long as your ratio's are at that threshold.
How do you revert back to normal? Play the game as normal, and damage enemy tanks to reduce your ratios.
Game Ban Sanctions.
Once an account has reached the threshold sufficient for sanctions to be placed, escalating bans will be issued.
- 1 Day Game Ban
- 3 Day Game Ban
- 7 Day Game Ban
- 30 Day Game Ban
- Permanent Game Ban
Reporting Friendly Fire or Team Kills.
The auto Friendly Fire and TK system has been thoroughly tested and tweaked since its introduction in April 2011. It works and works well, taking into consideration a multitude of scenarios.
As such, no reports of friendly fire are required, nor are they accepted. All tickets sent to support reporting team killers will be replied to stating this fact with the player sent to this post for more information.
Similarly all disputes on FF/TK sanctions will also not be accepted.
As most of you are aware, there has been a complaints feature in game which contains an option for reporting TKers.
Thank you for using this feature in the past, it has helped us perfect the auto system currently in place. However as mentioned above, reports on Friendly Fire and Team Killing are no longer required or handled manually. So reports made for team-killing in game, will no longer be processed or required. It is planned to have this option removed from the in game reporting system in a future update.
Reporting Friendly Fire, or disputing sanctions for Friendly Fire within the forums are both against the forum rules.
Compensation and Penalties for Friendly Damage.
To avoid exploitation of the system, compensation for Friendly Fire you have received will be low, and in some instances may be nil.
To encourage players to take due care and abide by the rules, credit penalties for Friendly Fire are high.
The credit compensation you receive is not directly related to the penalty paid by the offender.
Public Tests.
Support is not available for the Public Test server. This includes reports of rule violations.
The auto system handles friendly fire on the Public Test server the same as it handles it on the retail servers (as described above)