Solve : UFO's?

Although I say fake still fun to watch these UFO's in this video. After Bungee sold off to Microsoft I dropped out of the Halo game, so any Halo players out there (I know there are a few) let me know if this is some type of Microsoft Campaign since many of the posts say they are Halo 3 UFO's.

http://www.youtube.com/watch?v=up5jmbSjWkwI have seen a UFO but it didn't look like that.
Perhaps it was from a different PLANET or a new model, the one I saw was 30 years ago.
(Not joking about this, deadly serious)I wish I saw a UFO.... that would be so cool...I wish I saw and board their UFO and steal it.the things AROUND the edge look like the tops of the palm trees o.O
im not sure about this but flying saucers are real.. the first flying saucers that could fly were MADE in natzi germany during the second world war by the english electric company , they were destroyed on the runways when they were INVADED near the end of the war I've seen stuff like that on tv, but it's all real, they are just driods that the army uses, and they could easily be mistaken for UFOs.Its fake the ships have been modded onto the video..... Round twoHehehe.... the second one kinda looked like an imperial cruiserHeh, I went on one of the video responses to this (there's quite a few, ACTUALLY), and there were hundreds of comments about if it's a hoax or not....