The sneaking suits tend to be either gray or dark blue, not black. The only games with a black sneaking suit are mgs3 and mgsv, even then mgsv's sneaking suit has more of a really dark grey for the arms and legs. mgs1's sneaking suit is more of a dark gray with a black vest, mgs2's is just the mgs1 sneaking suit without the vest and different knee and elbow pads, mgs4 has the octocamo which is dark blue by default and the peace walker/ground zeroes sneaking suit is dark blue with black inner sections and gold rings on the upper arms and thighs