Only other notable thing is this. The Elite is saying "You should take this Skull to use against the Flood, Master Chief!"
The joke being that the Iron skull makes you die and have to restart from the beginning, no checkpoints. The Elite's being a dick, basically.
__________________
Ah, we are high school boys,
the miserable high school boys.
If we were girls, we could get popular by doing anything:
rock band, jazz band,
karate, kendo, mahjong, cyborg, synchronized swimming...
On the other hand, high school boys are
useless outside battle and sports anime.
But they're recklessly trying to make a slice-of-life anime about us.
Ah, we are high school boys,
the miserable high school boys.