You learn to read Redd, the article posted by Ghost says net lag affects both gun hits AND POSITIONAL DATA. Not just lost packets, professor.
At any rate, I'm outta here, tired of debating the issue.
"So how does net lag fit into all this? All this message exchange and processing takes time. In order for a gun hit to register on the target's computer, the hit message has to be sent to the Host (anywhere from 1/8th to 1/4th of a second), processed by the Host (anywhere from 1/4th to 1/2 a second, depending on how busy it is), then sent to the target's FE (anywhere from 1/8th to 1/4th of a second). Thus a hit can take up to 1-2 seconds to register, assuming no other (net) delays in communication. Damage to the target gets bounced back to the shooter from the host (not from the other guy's FE), so that the shooter's FE can shows parts falling off and other effects. Positional Data is done the same way, each FE sends positional data for it's plane approximately two times a second to the host. This information is processed, collated, and sent to all the appropriate FEs. This can take a second or two. Here is where the delay occurs. It is vital to remember that any other plane you see in the air is actually their position 1-2 seconds ago on their FE, not their position on their FE at that instant. Thus their actual position could be 1-2 seconds "further along" in reality, on their FE. In addition, your position on their FE is 1-2 seconds old, thus is 1-2 seconds "further behind" in reality."