correct me if I'm wrong but ST AR-15 is dead M16 betrayed G&K, joined SF SOPMOD is "missing" and M4A1 is left alive
Put spoiler please AR-15 was assumed KIA, but she barely survived and will not return until Singularity event M16 probably did die, given her situation, but she was fixed and willingly switch side SOPMOD survived, but heavily injired, she went on the run and return in Continuum Turbulance event (currently running) M4A1 survived everything, and heavily traumatized. And bonus, 5th member RO635 was shot in the head, SOPMOD salvaged her core before running and "restored" her. She wished she had died