I liked credits more than the spartain points but, i think you shouldnt have to buy the armor when you reach a rank it is awarded to you and you choose to have it or not.
LOLz
Anyway i think that it should be weaker not any thing like the Fus Ro Dah but something that can send the crates flying but not to strong. It could stagger opponets but not knock them over.
It wouldnt fit, skyrim you go around killing old woman, halo you go on dangerous misssions on another planet fighting enemys. Skyrim has a lot of characters halo has few to put in a world that large theyed be so spread out.
I am a fan because I liked it and it was one of those games that if you meesed up you fail miserably so you had to be really careful and time your attacks.