Yep 1st heres my attempt to recreate the song ...
http://soundcloud.com/jafet-meza-jk/halo-4-ost-the-arrival-to

(Jafet>Jafetator )

So if anyone would finish the sheets i actually dont have too much time to make them but anyway the midi is only for piano on an easy version.Feel free to modify it or fix it

And my tutorial of the Midi

http://www.youtube.com/watch?v=KbWqaS95CHQ&feature=channel&list=UL

http://www.mediafire.com/?ll45q6jo1v4gcx7