Yes - it's packed full of elites who unlike the brutes of halo 3
- use armour abilities effectively
Brutes in halo 3 would drop bubble sheilds then not even bother to use them.
- try to avoid your gunfire
Brutes would often stand around or charge directly at you - not even firing...
- work well in packs
they try to sneak around behind you while you're distracted.