Despite the things that went wrong with Reach, Invasion was probably one of the best gametypes to be introduced in Halo IMO. It is extremely team based and fun to play, something you'd expect in a Halo gametype. For one of the best gametypes implemented in Halo it definitely didn't get the support it needed. There were only two maps for Invasion and a third released in a DLC pack but you'd be lucky to ever see Breakpoint come up at all. Then when 343i took over they butchered Invasion. They added half-assed and broken Forge maps into the playlist that show up more than the three maps designed specifically for Invasion. They could have added a TU Invasion gametype to at least change some stuff up but they never did. They left Invasion in the dark while they concentrated on everything else. I enjoyed Invasion a whole lot. It is fun to play with a whole group of people and work as a team, whereas playing with randoms always leads to frustration while playing Invasion. I just wish there were more maps and more support for the damn thing.