This place served as a battle area during the war on Cybertron. Bumblebee was captured at Tyger Pax and Megatron brutally crushed Bumblebee's voice box when he refused to tell Megatron any Autobot plans.
When Raf asked Ratchet about Bumblebee's voice box, Ratchet told Raf that Bumblebee lost his voice box at the battle of Tyger Pax. Megatron crushed Bumblebee's voice box and left him severely damaged. Ratchet found Bumblebee and repaired his wounds, but couldn't repair his voice box completely.