By popular demand, a severely truncated glossary and acronym list for the W&S series.
Written without reference, let me know what is missing, or any corrected explanatory.
AAV - amphibious assault vehicle
AO - area of operations
BAS - battalion aid station
BLT - Battalion Landing Team
CENTCOM - United States Central Command
CMC - Commandant of the Marine Corps
CP - command post, check point
click - kilometer
DM - designated marksman
DIA - Defense Intelligence Agency
DOD - Department of Defense
DOJ - Department of Justice
EAS - end of active service
FMF - Fleet Marine Force
FOB - Forward Operating Base
fobbit - POG that works in a FOB
fuck/fucked/fucking - noun, verb, adjective, adverb, antecedent, relative pronoun, demonstrative pronoun, indefinite pronoun, reflexive pronoun, intensive pronoun
gunner - in particular, the battalion weapons officer; in general, a warrant officer
gunny - Gunnery Sergeant
HOG - Hunter of Gunmen
JAG - Judge Advocate General
JSOC - Joint Special Operations Command
IAW - in accordance with
IOC - Infantry Officer Course
ISAF - International Security Assistance Force
ISIS - Islamic State of Iraq
LAV - light armored vehicle
MCC - monitored command code
MarDiv - Marine Division
MEB - Marine expeditionary brigade
MEU - Marine expeditionary unit
MEF - Marine expeditionary force
mag - magazine
mil - millimeter
mike - minute
MOUT - Military Operations on Urbanized Terrain
MRE - meal, ready to eat
NCO - Non-commissioned Officer
OCS - officer candidate school
OP - Observation Post
PEBD - pay entry base date
POG - person other than grunt, non-infantry
PCS - Permanent Change of Station
pig - M60, perhaps M240 or heavy machine gun
PIG - Professionally Instructed Gunman
prick - PRC radio
SOI - School of Infantry
ROE - rules of engagement
S/S - scout/sniper
tango - target, terrorist
top - master sergeant (USMC), company first sergeant (army)
SAD - special activities division
SOCOM - Special Operations Command
TAD - temporary additional duty
TDY - temporary duty travel
TBS - the basic school
TIG - time in grade
TIS - time in service
T/E - table of equipment
T/O - table of organization
NATO - North Atlantic Treaty Organization
NJP - non-judicial punishment; 'ninja-punch'
UDP - unit deployment program, user datagram protocol
UCMJ - Uniform Code of Military Justice
sierra hotel - shit hot
S, G-1 admin
S, G-2 intel
S, G-3 operations
S, G-4 logistics
S, G-5 plans
S, G-6 information and communications systems
S-X alpha - number two officer of a staff shop
UD - uniform of the day, typically charlies
utilities - USMC cammies
X/Y - x battalion of y regiment
zero - officer