Complex sentence: On the return trip to Cybertron, Bonecrusher advocated the "survival of the fittest" policy and ejected many wounded Decepticons from the shuttle, among them Megatron, prompting Scrapper to vote for the Constructions as the new leaders of the Decepticons.
Split into simpler sentences: On the return trip to Cybertron, Bonecrusher advocates a "survival of the fittest" policy and ejected many wounded Decepticons from the shuttle, among them Megatron. This prompts Scrapper to vote for the Constructions as the new leaders of the Decepticons.