They resemble a Rebel Pilot with the helmet of a desert Rebel Soldier. These pilots are a "body" customization feature that lets you attach any Alliance head to them. Therefore you can see a blond female X-Wing Pilot in one direction or a Sullustan one in another section of the map. However, you can also see them on default maps such as Hoth, even though it's cold outside.
Full-body shot of one of these soldiers without a helmet.