It's a confusing game, lost in a space between regular FPS where any weapon does damage to any enemy and a pattern based system like the modern Doom's.
It lacks the simplicity of the first Halo weapon roster, where shielded floods necessary.
With all its new weapons and enemy it feels you never have the right one at the right time.
Still don't know what to make of these really too dark sections, you can't even see the ennemies but they can see you, get the point but idk.

I didn't like CE much first but liked it more the second time while noticing all the design choices.