Specialist Wilson

Specialist Wilson is a marine in Doom 3 voiced by John Carmack, heard over the radio during the Mars City Revisited level. He and his team were on patrol when the invasion occurred. The whole squad was killed except Wilson. He can be heard reporting in to Sgt. Kelly, asking for orders. The Sergeant tells him to fortify his position and wait for help. The player does not hear him over the radio again. Wilson was most likely killed while trying to fortify or hold his position, given that the Protagonist is stated to be the only known survivor.

Trivia

 * Specialist Wilson is not encountered directly, but is most likely a technology or weapons specialist, possibly a demolitionist, heavy weapons operator, or similar.
 * During his radio transmission, the sound of a plasmagun being reloaded can be heared at one point, pointing out that Wilson had access to supperior tier of weaponry as opposed to regular security personel.
 * Possible factual error: Assuming that the Marine Corp on Mars uses the same ranking system as the real life US Marine Corp, then Wilson should be a Corporal, as the rank of Specialist is only used by the Army.