Hi-Tech Soldiers

The Hi-Tech Soldiers are units from Metal Gear Solid 2 in a very minor role, they later become playable in Metal Gear Solid Portable Ops Plus if the player captures one

Appearence
wears a Blast suit that covers the mouth and chin, and wears a helmet with a riot-style swat helmet.

Metal Gear Solid Portable Ops +
the High Tech soldier is playable in Portable Ops Either by code or capture, his helmet allows you to see the stats of an enemy. the helmet also protects against headshots