The 03 Occupational Career Field ku US Marine Corps ndikumenyana ndi zida zogonjetsa.
Mafilimu a USMC ndi magulu amphamvu omwe amaphunzitsidwa kupeza, kuyandikana nawo ndi kuwononga mdani ndi moto ndi kuyendetsa, kapena kubwezeretsa chilango cha adani ndi moto. Riflemen (0311) amatumikira monga asilikali okwera kapena osweka ndipo amachita makamaka ngati zigawenga, magulu ankhondo, ndi asilikali omenyana pafupi ndi gulu lililonse la achinyamata.
Achinyamata ali ndi amphibious ankhondo omwe amapereka zogwirizana ndi zovuta komanso zosadziwika mikhalidwe ya mavuto ndi mikangano.
Amagwiritsa ntchito zida zosiyanasiyana ndi machitidwe. Kupyolera mwa mauthenga a mauthenga, zothandizira zida, (mfuti, mfuti yamphepete mwa nyanja, komanso kuwomba mpweya wa m'mphepete mwa nyanja). Amadzimadzi a USMC amatha kulimbana nawo pa malo amtundu uliwonse kapena malo, masana kapena usiku, motsutsana ndi magulu otsutsa. Achinyamata ali ndi mphamvu zokonzekera nkhondo, kuphatikizapo NBC; kugwiritsa ntchito magulu a nkhondo pofuna kupeza, kuyandikana nawo, ndi kuwononga mdani ndi moto ndi kuyendetsa pamapazi kapena kukwera pa magalimoto, magalimoto oyendetsa, chiwembu, kapena ndege zowononga.
Ma MOS a anyamata a USMC amatha kuteteza ndi kutetezera malo enieni ndi ofunikira mwa kupondereza adani awo pamoto, kuyendetsa, ndi kumenyana kolimba. Iwo amalimbikitsidwa mu utsogoleri wopititsa patsogolo omwe amapanga msilikali wamkulu kudzera muzochitikira ndi kuphunzitsa kwa mkulu wogwira ntchito yemwe sali woyang'anira komanso wogwira ntchito osatumizidwa.
Mtsogoleri wotsutsana wa sitima za Marines ndikuwongolera zochita za Marines mu magulu, zigawo, squads, ndi zidutswa, pamene akugwirizana ndi magulu apamwamba ndi oyandikana nawo.
M'munsimu muli Ma Special Occupation Military Occupation omwe amadziwika ndi ntchitoyi:
0311 - Rifleman
0312 - Mtsinje wa Assault Craft
0313 - LAV Crewman
0314 - Mbalame Yogulitsa Raid
0316 - Craft Recouissance Craft
0321 - Munthu Wozindikira
0323 - Munthu Wotchuka, Parachute woyenerera
0324 - Munthu Wozindikira, Wopambana Wotsutsana
0326 - Munthu Wozindikira , Parachute ndi Wotsutsana Oyenerera
0331 - Machine Gunner
0341 - Mortarman
0351 - Wopondereza Wopanda
0352 - Tangi wamisala
0369 - Mtsogoleri wa Unit Unit
0372 - Opaleshoni Yoyendetsa Marine (MarSOC) Yogwira Ntchito Yovuta (CSO)
Osati onse mu Marine Corps amatha kuchita ntchito zotsutsana izi. Zonse zimafuna kukhala ndi thanzi labwino, kuvutika maganizo, ndi luso lomwe lidzayesedwe pa msasa wa boti, maphunziro apamwamba, ndi mapulogalamu oyang'anira. Maphunzirowa amafuna kuti mukhale oyenerera kuti musamapite zaka zambiri musanapite ku Marine Corps Recruit Depot - kapena Boot Camp / Basic Recruit Training.
Kawirikawiri amatamandidwa ngati kampu yoopsa kwambiri / maphunziro oyambirira ku US Military, kufika kwanu bwino kukuthandizani kupeĊµa kuvulaza, kuphunzira ntchito yanu yoyamba ya Marine Corps, ndikuthandizani kukwaniritsa zolinga zanu zapadera (ngati Infantry / RECON / zina).
Mapulogalamu apamwamba pazochitika zamakamenyana apamtunda ndiwo ambiri mu Marine Corps. Zochita zanu ndi chikhumbo chanu pa Basic Recruit Training zidzakupangitsani ntchito yanu mtsogolo. Masewera Ogwira Ntchito M'minda Ntchito ndi mpikisano koma zazikulu zokwanira kuti zigwirizane ndi zokhumba zapadera zokhudzana ndi nkhondo.