S&box Multiplayer Sync & Roles

I have an early-stage S&box FPS inspired by SCP role-play and I’m stuck on the networking layer. Right now clients see different states for players and the NPC, so your first task is to bring everything back into perfect sync. Every player action—movement, shooting, blinking at SCP-173—must look identical to all connected clients with no desyncs.

Once the network code is solid, I need the core character system completed. The three roles—Prisoner (D-Class), Researcher, and Guard—already exist in code, but they still lack their unique perks and the role-specific interactions outlined at the top of this design file:
https://docs.google.com/document/d/14XvGdtFVE52M9urTPCPx5DPV9WWwf6gHo3R-rGT0B_U/edit?usp=drivesdk
Mapping, art, sound, and extended mechanics can wait; I only want the fundamental loop in place so I can test player interest.

Deliverables
• Reliable client-server synchronization (players, weapons, SCP-173 state)
• Polished role system with special abilities and clearly separated interactions for each class
• Cleanup of the existing files noted in the Google Doc
• Short read-me explaining any new console commands or configuration flags