How much do you know about Halo?

Must have played Halo to answer this quiz.

1 What is the name of the Alien that you play as in Halo 2 and 3?
2 What is the name of the guy in the suit that you play as in Halo 1-3?
3 What is the the smallest alien in the game?
4 What weapon do most Elites have?
5 What wepon did they take out of Halo 3 that was in Halo 2?