L.M.

Safe

L.M. (written as "LM") are the initials of a Black Mesa employee working in the Support Personnel Division at the Office of the Administrator. These initials can be seen three times in the instruction manuals. L.M., whose complete name is unknown, was therefore working for Wallace Breen, probably as a secretary, and seemed to handle important to trivial affairs.

Half-Life PlayStation 2 instruction manual

 * L.M. was Gordon Freeman's contact when he was still at Innsbruck. In a letter dated May 5, 200-, he/she announced him he was hired by Black Mesa and that he would start on May 15. Kleiner is also mentioned as having recommended Gordon.
 * L.M. wrote a letter to Colette Green to announce her that the Xen Crystal sample EP-0021 was to be replaced with sample GG-3883.

Half-Life: Blue Shift instruction manual
In its actual first appearance, L.M. sent a letter to Barney Calhoun about his new Blue Shift reassignment. He also gave him schedule details for his Black Mesa Hazard Course for Security Guard Training and where he is expected on his first Blue Shift day.

Behind the scenes
The related instruction manuals having been written by Gearbox, "L.M." is likely a nod to Landon Montgomery, employee at Gearbox, placed there as an Easter egg.

List of appearances

 * Half-Life
 * Half-Life: Blue Shift