Like the barbies hate rank lock so much they will metagame using alt accounts to get their gear... kill this practice with a timeout.

This will be a manual clean up conducted by an admin to help the server FPS (could also be an overzealous auto clean up mod if server is modded).

In T188190#2737342, @PR9INICHEK wrote:

1.3.0.18 Changelog

Changed: Friendly fire kills in the kill feed are now visible to the entire team of the players involved, showing both the killer and the victim. The game master is still able to change the setting to the default killfeed, as well as the players involved only killfeed setting.

This should probably help.