Im a strong supporter of the XM8 series, this was a revolutionary weapons platform that outperformed a lot of weapons like the ACR,M4/M16,and even the M416. A lot of people dog on the XM8 because of the issues the platform had for example the plastic would melt when the gun got too hot. This was all fixed people just don't do the research the U.S. Gov't just decided to keep the M16/M4.
I was kind of mad when I never saw the gun ingame, but DICE said there will be no outdated weapons in game I was kind of alright with that, but when I seen the MK3A1 was released wih B2K I was furious becuase the MK3A1 never even made it to the production stage, with only two working fully automatic prototypes, compared to the hundreds of prototypes for the XM8.
I also agree with the added vehicles Idea, especially with the release of armored kill there are not enough vehicles.