"Halo? Never heard of it. We don't have video games when I come from."
Standard issue in the Future Soldier's home time, the Personal Shield Generator (PSG) projects a protective energy barrier around the body. It absorbs damage far better than traditional armor, but its battery is quickly drained. When depleted, the PSG must spend a few seconds recharging.
The device itself is an unremarkable metal hexagon that is worn on the belt. When struck, the normally-invisible field of the PSG flashes, revealing a bright yellow honey-comb pattern encasing the body.
When wearing the PSG, subtract 4 from damage dealt to you by physical attacks, down to a minimum of 0 damage. Armor from multiple sources does not stack.
This is a unique item that may be lost or stolen.