I think some of the flashier ones give a player a disadvantage, especially Fotus. I'm able to see a Fotus coming before the player gets there. --- "Opinions should be a result of a thought, not a substitute for it."
It's mainly a visibility thing. Back in halo 3, Eva helmet wearers were easier to pick out do to the large, bright gold visor than EOD, for example. Besides that, though, armor is mainly cosmetic. --- GT: brnginDhuricane The greatest workers are those who can get the best possible results from the least amount of effort.