needs work
1) You ought to make it more like Halo with the armor bar and ammo supply and radar and stuff and everything and the blue blood of the Covenant forces.
2) The sound effects could be better. Make it sound as close as possible to the Halo sounds.
3) Make independent movement.
4) Have the Covenant forces talk like they do in the game.
5) Have all the weapons you can get in the game and have marines running around shooting like they do in some levels and have vehicles like the WartHog and the Ghost and Scorpion so you can drive them.
6) Work on the environmental detail.
7) Have fun doing it!
I wanna feel like I'm playing Halo, but on the computer. Because Halo is my favorite X Box game.
Overall, nice job! Hope my suggestions help! :)