Additional Study Information: The purpose of this study is to evaluate the effectiveness of preoperative radiation therapy used in combination with the immunostimulatory agent talimogene laherparepvec (T-VEC) to improve outcomes for patients with resectable soft tissue sarcomas, including soft tissue sarcoma (liposarcoma (excluding myxoid liposarcoma), leiomyosarcoma and undifferentiated pleomorphic sarcoma), arising in the trunk or chest wall.