At the end of may, Microsoft has registered a number of domains on a not better defined Halo: Spartan Assault : SpartanAssault.net, HaloSpartanAssault.com, Halo-Halo-SpartanAssault.com, SpartanAssault.net and HaloSpartanAssault.net.

For now do not know what this name can refer, it could also be from the TV series produced by Spielberg announced at Xbox One; in 2010 but would Microsoft declared produce Halo games with greater frequency, and since then they have released one each year, so it could also be a title-maybe not FPS or not tied to the main story, such as a strategic-TPS to be announced at E3 for Xbox One. We are waiting for official news.