Complex sentence: She managed to gain Walters cooperation who suggested she investigate General Hunter Braddock who was in charge of the "Lightning Gun" project, and who was also involved with China White in her diva persona.
Split into simpler sentences: She managed to gain Walters cooperation who suggested she investigate General Hunter Braddock who was in charge of the "Lightning Gun" project. Braddock was also involved with China White in her diva persona.