my opinion would be the brutes. they make fighting a little intimidating for rookies, they have massive brute force like hunters but not as strong, they are a little fast, and have good strategies, weapons, and tactics. But there is no actual alien that's the best.
You cannot play as Covenant in the original Halo
No
u cant
The covenant is an alien species in halo including grunts and elites.
defiently halo 3 hunter
halo in the game or film is a alien weapon that has an ability to destroy galexies
You can't.
If you want to be an alien you have to be player 2 or up.
No. You can't turn invisible whenever you want like in Halo 2. P.S The ALIEN is one of the main characters in Halo 2&3, his name is simply the Arbiter
Halo is all about saving the world by stopping an alien force called the Covenant from activating the Halo rings. That's pretty much the story.
jackal
THE best alien of ben-10 ultimate alien is alien x.