It's kind of too vague for me. The beginning was cool but the last bit of the game is kind of okay. It has a good sequence in there but also just feels unneeded idk its weird. Improvisation is a truly great moment though.
It's pretty good as an expansion to Halo 3. Felt pretty good as a shooter since you are more vulnerable. The group of characters are fun. I also like that I can speed through the main missions in like 10 minutes.