Question Rainbow Six Siege — Reversing Query Bus Offsets and Executables

[byte_corvus]

Anyone digging deep into the R6 internal architecture lately? Dealing with the Query Bus (QB) in Siege is always a headache since the structure isn't exactly standardized across every build, and plenty of public or private QBs are just dead on arrival depending on your current project base.

I am currently looking for a workaround to reverse these effectively without relying on trial and error. The plan is to get my hands on an executable that is flagging a broken QB, swap it with the main game binary, and force an offline launch to hook it up with Cheat Engine and IDA.

Spoiler: Technical Considerations

1. Replacing executables usually triggers integrity checks via the Ubisoft Connect overlay or the game launcher itself.
2. Even if you bypass the launcher, the game's initial handshake often requires network packets that won't resolve offline.
3. IDA Pro base addresses might shift depending on the specific patch version of the executable you are trying to map.

Before I start bricking my game files trying to force an offline environment, I wanted to see if anyone has successfully managed to dump these specific QB offsets by emulating an offline handshake, or if there is a cleaner way to force the binary to stay alive long enough for a memory scan without getting kicked by the integrity hash mismatch.

Has anyone successfully reversed a mismatched QB build without getting flagged by the AC while trying to hook it?