In the military:
Seiga - Covert Ops
Nue and Mamizou - Spy
Reisen - Information 'Extractor'/Designated Marksman
Murasa - Main Navy fleet
Futo - Mini-boat commander
Nazrin - Field GI Commander
Aya - Dogfight Specialist
Medicine - Chemical Warfare
Mokou - Cannon Fodder and Incendiary
Nitori - Mechanic and Heavy/Advanced Weapons
Rikako - Research
Yoshika - Professional Cannon Fodder/
Stress ReliefCirno - Disposable Soldier
*gapped for security*
Suika & Yuugi - Stormtroopers
Utsuho - Nuclear Arsenal
Alice - Drone Tech
Eirin - Medic
Kaguya - Decoration for the Civilians to see
Letty - Winter Ops
Marisa - Ace
Rika - Tank Commander
Chen and whoever else is adorable - Propaganda A
Whoever the else is sexy - Propaganda B
China - Motherland