Mr Puggsly said:
Halo:MCC with cross play

That is my answer as well. I'd love to be able to play it on the go. 

VGChartz Sales Analyst and Writer - William D'Angelo - I stream on Twitch and have my own YoutubeFollow me on Twitter @TrunksWD.

Writer of the Gap Charts | Weekly Hardware Breakdown Top 10 | Weekly Sales Analysis | Marketshare Features, as well as daily news on the Video Game Industry.