"Boss, our game ships in two weeks, and we're not even close to finishing the animation sets! Should we try to scrape together some really basic motions for everything?"
"No. If the animation isn't up to our standards, leave it out."
"But then the troops will randomly have their arms stretched to the sides when they're doing various actions!"
"Just say it's their 'zen' pose. Ship it."
And that's how Spartans started shooting bullets out of their faces.