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Source Engine hides latency by running identical movement code on client and server. Learn how lag compensation rewinds hitboxes for hitscan and how the 100ms default lerp creates a fixed peeker's advantage for map design.
Explore how the Source Engine uses client-side prediction and server reconciliation to eliminate input lag while maintaining an authoritative server state.
A laggy custom weapon in a Source mod usually isn't a weapon bug — it's a misunderstanding of prediction, interpolation, and lag compensation. Here's how the three systems fit together and how to write networked fire code that feels instant.
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