The Invasion and Generator Defense game types where pretty fun. It is a new twist for the Halo Franchise and I enjoyed it. The scoring in the Arena is pretty slick too. One problem that I have had with Halo 3 MP is if you do not invest a great deal of time in MP then your rank hardly goes up. My highest rank for Halo 3 MP is 29. I am also a fan of the reticle bloom as well, along with the rework on how shields function.