You can't lag switch. You don't host the game at all.

I heard Bungie has been thinking of having matches based on connection speed. If that is the case I hope they keep track of connection speed throughout the match and adjust your next match based on that. Basically use your worse connection speed in a match and place that in your average. That will eventually filter all the lag switchers to the same matches. It will also prevent switchers from just making a good connect for a match or two, because it will take the average of all your matches.

I've encountered nothing even close to that

Been playing since preorder beta opened. Seen 1, maybe 2 mildly laggy players. Maybe it's something on your end?

Haha, lag switchers already too??!! Some of you guys are so salty its actually quite funny. It's a beta. For testing. Bungie are testing connection methods to see what does/doesn't work. No one is lag switching.