every game lags. Before you suggest it’s my connection, Halo 4 and Reach never lag for me. What gives?
I don’t know what to say other than the population of the game is less so lag might happen more to you.
However, for me when I play halo 3 I get less lag than Halo Reach and Halo 4 usually.
Halo 3’s servers are pretty old, lag is somewhat common.
The population isn’t as big as Reach and Halo 4, so you have a higher chance of running into someone with a bad connection.