Over the last few weeks I've been having issues on the OCR server, which aren't present on other servers nor experienced by anyone else on the server.
The issue is basically that while everything is updating smoothly (players moving, projectiles firing, etc.) my location on the server seems to be vastly different from that which the client is reporting. This leads to me being able to run in front of 3 sentries, apparently take no damage, and then die to a headshot that actually killed me before I ran in front of the sentries.
Here's some of my net_graphs to see if anyone else knows what the problem is: