By joves. I'm just going to throw my opinion into the mix and say spartan-like armor is neat and acceptable, but crossovers are a little silly and tend to lead to power-playing, which I hate more than anything on this earth. And once we get into the whole "super secret super soldier developed in a seriously super secret lab to kick wholesale ass" deal, there's no stopping the power playing. Plus, adding the Halo universe to Mass Effect adds about 1000 more variables into the storyline that would need to be considered. But if this does evolve into a crossover, I call cyborg-zombie John Marston.