Flame thrower?

http://youtu.be/kgZIYHMc1Ak

If you look to the left of the screen you can see a spartan using a flame type weapon.

What are your thoughts?

Nice catch, but it looks like the Spartan is shooting a pistol…perhaps a new sidearm? One of the comments in the video suggests it is the Promethean pistol, which either way is pretty cool.

Very nice find

Already being discussed here.