If admin is not available, they will leave a note in your inventory or contact you via steam
There a options to report.
1. If you suspect a player of cheating, always submit a report using the in-game F7 reporting system. This is the most effective way to ensure that reports are properly logged and reviewed by Facepunch. Reports submitted through the F7 system are also forwarded to server administrators, allowing us to investigate incidents more efficiently. When reporting a player, please provide as much detail as possible, including the player's name, location, and a description of the suspicious behaviour.
2. Want to add more info? Use ingame chat command /helpme to include your report & video or image url of cheaters or problems.
* Unfortunately, cheating remains an ongoing challenge within the Rust community, and not all malicious activity is immediately detected by automated anti-cheat systems. To help maintain a fair and enjoyable environment, our administration team utilizes a range of tools and investigative methods to identify and monitor suspicious behaviour. These tools allow administrators to review player activity both in-game and remotely, enabling effective oversight even when staff are not actively connected to the server. While an administrator may occasionally be online and visible, please be aware that several members of our staff team regularly monitor server activity behind the scenes. As a result, administrative oversight may be occurring even when no admins appear to be present in-game.
PLEASE DO NOT CALL OUT HACKS IN GAME! JUST REPORT! SAY NOTHING!