Hidden sounds?

  • Greetings fellow IC2 users,
    I was browsing the IC2 jar file like a boss today and I found these strange sounds. I found sounds for the Nano Saber :Nano Saber: , Qsuit :Quantum-Helmet: , Nanosuit :Nano-Helmet: , and even some sounds for the trampoline :Rubber Trampoline: and battery :RE Battery: . Are these unused sounds, or are they just sounds already in game? If it is the latter, how do I enable them?