Military Sexual Trauma Retirement Equity Act This bill expands eligibility for certain special compensation to disabled uniformed services retirees who are survivors of military sexual trauma. Specifically, the bill renames combat-related special compensation as trauma-related special compensation and makes eligible for such compensation trauma-related disabled uniformed services retirees (i.e., members of the uniformed services who have a trauma-related disability and are entitled to retired pay). The bill expands the former definition of a combat-related disability (now a trauma-related disability under this bill) to include a disability that is compensable under laws administered by the Department of Veterans Affairs (VA) and is determined by the VA to be the result of military sexual trauma.