L. Jenkins

Were you looking for Capt. Jenkins from the Second Battle of Harvest, or were you looking for PFC Wallace A. Jenkins in Halo: Combat Evolved?

L. Jenkins was a UNSC Marine infantryman assigned to either the 405th or 77th during the Battle of Earth in October 2552 ^[1].

He is first seen in a piece of gallery art in the Halo Graphic Novel, where he is depicted ducking to avoid a thrown Type-1 Antipersonnel Grenade, with two other Marines including L. P. B.

Trivia

His name may be a reference to Leeroy Jenkins, a character from the popular MMORPG World of Warcraft. In the clip, Leeroy messes up a carefully planned battle strategy by charging straight into a room full of enemies while shouting his name, resulting in his raid party getting killed within seconds.
It is unknown whether or not L. Jenkins is related to Captain Jenkins, who was a UNSC Naval officer that served during the Second Battle of Harvest with Battlegroup Phi, or PFC Wallace A. Jenkins, a UNSC Marine assigned to the UNSC Pillar of Autumn during the Battle of Installation 04, and a victim to the Flood parasite.