Field 12 - Corps Engineer
Shaqooyinka laga tirtiray ciidanka waxaa lagu magacaabaa "MOSs", ama "Special Features".
Ciidanku waxay u kala qaybsamaan MOS-yada "Goobaha," ee shaqooyinka leh hawlo isku mid ah. Hoos waxaa ku qoran MOSs ka tirsan Goobaha Moobilayaasha :
12A - Qaadi Karo Sare ah
12B - Ku-xigeenka Engineeriga
12C - Kutaan Cusub
12D - Diver
12G - Takhasusleh
12H - Kormeeraha injineernimada dhismaha
12K - Wareegid
12M - Dab-demis
12P - Takhasuska Hantida Wax-soo-saarka Guud
12Q -Khabiirka Qaybinta Qaybta Kala- bixinta Qadka
12R - koronto yaqaan
12T - injineer farsamo
12V - Dhismaha qalabka dhismaha iyo Asphalt
12W - Xirfadlaha Dambiyada iyo Masaajidka
12X - Kormeeraha guud ee injineernimada
12S - Engineer Jabbaradeed
12Z - La Dagaalanka Qalabka Aasaasiga ah ee Engineerka