To increase generalizability to other disorders and to patients with comorbid anxiety and depression (the typical clinical profile), the investigators will recruit patients who are diagnosed with both MDD and PTSD. Participants will be scanned in an MRI to get anatomical and resting fMRI data to guide TMS, then participants will be invited to participate in two rounds of two week TMS treatment to each site (order counterbalanced) with one month between treatments. Participants will be monitored to assess depressive symptoms, PTSD symptoms, and quality of life before, acutely after, and one month following TMS treatments to evaluate the effectiveness of each site in mitigating symptoms or improving functioning.