By the power of truth, I, while living, have conquered the universe.
What year in the Halo universe is your machinima set? Beta Gabriel is very close to Reach and it's inhabited by humans, it would be very tricky to actually make that work - but it's up to you.
Sangheili naming is a concept difficult to grasp at first, but it follows a simple structure.
1) First name, usually 3, 4 or 5 letters long.
2) Optional middle name. For example, Voro Nar 'Mantakree (note that the middle name is customary to Sangheili with a great amount of honour, you could have one of your characters lose this statusin your machinima).
3) Last name. Almost always begins with an apostrophe (') and ends with an "ee" suffix (but will be removed for your characters as they've been discharged from the Covenant).