We all know that cheating is running rampant in PvP these days. But, just because you shoot a guy and he doesn't die immediately, doesn't mean that he is cheating. You'll know a lag switcher by 3 telltale signs: 1) They don't take any damage at all. As in, none. You shotty them and you don't even get that "late" kill after you're dead. They just keep running. 2) They continue to play normally. This is key. If you shotgun a guy and he then kills you, runs around a corner, and jumps (or something similar), you're seeing lag switching. If he takes no damage, but then runs straight into a wall for 30 seconds, he's lagged out himself (likely cursing at his TV). 3) You cannot interact with the environment. This is the best way to tell. Trying to pick up ammo and it won't let you? Trying to open a door and it won't open? Yup, someone somewhere is cheating in your match. All 3 may not happen. And, they may not all be the same thing (still haven't figured out how switching prevents doors from opening up). But, they are all intentional manipulations of the game and/or connections to provide a person with an unfair advantage. So, unless someone is doing these things, please don't report them. If Bungie gets flooded with reports of people with bad connections as "cheaters", then they have less time to focus on the real cheaters. FYI - if you want to know what true lag switching looks like, here it is. https://vid.me/xkRK Know of any other 100% ways to tell that someone is or isn't cheating? Please let us know! I'm not a computer guy, so I'll be the first to admit I don't know everything about this. [b]edit - [/b] Quick explanation on the physical differences between "lag" and "lag switch". Pretend that your bullet is the actual information traveling over the internet. You shoot your bullet, it leaves your console, goes through your modem, across the internet, into that other guy's modem, then into his console. The bullet hits his character inside his console, which then registers a hit and sends information to everyone else saying, "I'm dead". If you are "lagging", then the bullets leaving your machine are getting interrupted, are going slow, etc. This means that you are having trouble shooting other people. Also, the bullets coming into your machine are getting interrupted, going slow, etc. This means that, from everyone else's perspective, you are running around the map immune to fire. "Lag switching" is the intentional interruption of ONLY the upload part of your connection. When this happens, the lagger can technically still take damage. But, because he his moving around, but not sending info on where he's moving to you, you don't know where he really is. He will shoot you, and that "bullet" (which has a time stamp showing when it was shot) will be waiting for when he turns his switch back on. When he does it, that bullet travels to your console, asks, "Were you in the path of this bullet when it was fired? Yes? OK, you're dead." Like quadracer said below, if you think they are really lag switching, look at their stats. If they are losing, they're DEFINITELY not lag switching (or, they suck at life anyway). If they are winning, they "may" be lag switching. Look at their movements and apply the 3 questions above.