It says then when upgraded it adds armor in death match I assume that means you take less damage. and that it decreases damage in points mode? What does that mean> Does that mean it lowers the damage of my weapons in points mode or the damage that I take? Its unexplained and can be a big difference in a game.
When you are in deathmatch, armor acts like a cover from attacks (extra life). In points mode, YOU take less damage from others weapons(but the damage reduction is tiny). Understand now?