This was boring
The start was slow but I expected it to pick up, but it never did. The writing was awful and the voices were even worse. I can see you were trying to make something that had emotion but adding in borrowed music from the Halo series and sad music does not make a scene great if the acting isn't compelling. The episode dragged on but I watched it too the end and by the end I was unimpressed.
Vector traced images from halo screenshots along with cheesy anime does not make a good animation instead it looks lazy. The characters barely moved and the few times they did it was mostly with the anime characters and even that was terriable. It would have been better if you drew the Spartans yourself instead of tracing them.
You put effort into this but effort alone is not enough. I suggest hiring a writer or find several editors to help you write these episodes. Your story seems boring and the characters are paper thin. I just can't give you anything more then 4 stars because this was below average.