The Drill instructors are speaking Hungarian, I think it's to imply they are from Reach which in universe is Hungarian majority. There is no service mandate in the UNSC and the ODST's in particular are a volunteer special forces branch like our modern day Paratroopers. I think those two are supposed to be the same person the scars are identical. Fun fact about ODSTs 10% die before they touch the ground an even larger "Dig their own grave" on impact.
As for the song, which is perfectly haunting, is a welsh song. "The Song of Aiden" Gafflwn Dihenydd O'r Fuddugol wiriol sydd Ni fydd neb yn ein drechu Falch ydy ni i drochu Draed o'r flaen i'r Annwn Mewn y gwybodaeth fe godwn ni. We cheat death From his rightful victory No one can overcome us We are glad to plunge Feet first into Annwn In the knowledge we will rise.
I know I'm like half a year late but the language she's singing in is Welsh, not Gaelic. The lyrics in English are: "We cheat Death from his rightful victory. No one can defeat us. We are glad to plunge Feet first into hell in the knowledge that we will rise."
@@rannenw6207 Irish Gaelic, Scottish Gaelic, and Welsh are all Celtic languages, but are all different enough to be separate languages . Kinda like how French, Italian and Romanian are all Romance languages.
The funeral was in a power plant cooling tower and the battle scene was in a strip coal mining location. The fast forward/field burial was indeed filmed at an aluminum factory.