Security guards perform work familiar to some military personnel.

Jobs in this career are similar to the following job classifications in the

001504
Expeditionary Security Force Specialist (Enlisted)
002649
Camp/Convoy Security Specialist (Enlisted)
003767
Security Support Specialist (Enlisted)
A17A
Marine Basic Combat Skills Specialist (Enlisted)
MA
Master-At-Arms (Enlisted)
MT
Missile Technician (Enlisted)
V88B
LCS-1 (Freedom Variant) Gunner's Mate (Enlisted)

The following military occupations are no longer in active use:

2401
Marine Basic Combat Skills Specialist (Enlisted)
98LD
LCS-1 (Freedom Variant) Gunner's Mate (Enlisted)
TM
Torpedoman's Mate (Enlisted)