Raiden IS a scout! Enough that that was his title in MGS4 (White-Blooded Scout) and he is the one who gives the scouting tutorial.
He is able to read enemy movement by watching and listening to wildlife, he is an expert tracker and with AR scanning he can read the levels of certain gasses in the air or chemicals in the earth and can see things moving on the other sides of walls. Need someone who can see structures buried beneath the snow and ice? Here's your man!
He is also sneaky like a ninja but is incredibly strong, too, if things start to go south.
Raiden - Metal Gear
He is able to read enemy movement by watching and listening to wildlife, he is an expert tracker and with AR scanning he can read the levels of certain gasses in the air or chemicals in the earth and can see things moving on the other sides of walls. Need someone who can see structures buried beneath the snow and ice? Here's your man!
He is also sneaky like a ninja but is incredibly strong, too, if things start to go south.