I apologize in advance for the cross-posting. I scanned through my archive of the hlds mailing list, but did not see anything related to this issue. It appears, after careful study, that there exists a discrepancy between a player's appearant position and their real position that depends on the player's ID relative to the server. This has been observed in the base HLDM, DoD, and several third-party mods. CS was not tested.
Description: This bug allows a player to be seemingly invulnerable - shots fired directly through their body (as seen by the client) will not affect them at all, but shots fired a certain distance ahead of them (depending on player speed) WILL hit them. This only affects the player in the last slot.
Reproduction steps:
1) Start a 3-person dedicated server.
2) Three people need to connect. The player to connect last will be the "bugged" player.
3) Pick one of the first two players to be a control player, the other will be the designated gunner.
4) Have the control player run around. Gunner should CAREFULLY aim and fire ahead, behind, and directly upon the control player. Only the shots that are aimed directly at the control player should hit.
5) Have the "bugged" player run around. Gunner should CAREFULLY aim and fire ahead, behind, and directly upon the "bugged" player. Only the shots that are aimed AHEAD of the "bugged" player should hit.
Notes:
- Every person we have introduced to these reproduction steps has been able to verify our findings. - Network latency seems to have no effect; the bugged player acts the same to players with a 2.7ms ping as it does to players with a 120ms ping. - This does not SEEM to be a mod-related problem. Every mod tested, wether official or third-party, has displayed the same behaviour. - It is only the player in the last slot that displays this behavior.
I'd appreciate some feedback on this. Am I simply going senile, or am I really seeing this?
Thanks in advance,
--ari
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