They may have helped save the Earth in the Halo series, but the UNSC's ODST forces seem to be having a little trouble adjusting to civilian life now that the war's over. Case in point: you don't need armour to go to McDonalds. The drive-thru at McDonalds.
Unless you're Fahey, that is.
And you, uh, probably shouldn't be feeding it to that dog, either. It looks like it's had enough already!