Oh fuck guys. I checked out the manifest for thundermountain.
Code:
"sound\mvm\giant_heavy\giant_heavy_step01.wav"
"sound\mvm\giant_heavy\giant_heavy_step02.wav"
"sound\mvm\giant_heavy\giant_heavy_step03.wav"
"sound\mvm\giant_heavy\giant_heavy_step04.wav"
"sound\mvm\giant_soldier\giant_soldier_step01.wav"
"sound\mvm\giant_soldier\giant_soldier_step02.wav"
"sound\mvm\giant_soldier\giant_soldier_step03.wav"
"sound\mvm\giant_soldier\giant_soldier_step04.wav"
"sound\mvm\giant_demoman\giant_demoman_step_01.wav"
"sound\mvm\giant_demoman\giant_demoman_step_02.wav"
"sound\mvm\giant_demoman\giant_demoman_step_03.wav"
"sound\mvm\giant_demoman\giant_demoman_step_04.wav"
"sound\mvm\giant_scout\giant_scout_step_01.wav"
"sound\mvm\giant_scout\giant_scout_step_02.wav"
"sound\mvm\giant_scout\giant_scout_step_03.wav"
"sound\mvm\giant_scout\giant_scout_step_04.wav"
"sound\mvm\giant_pyro\giant_pyro_step_01.wav"
"sound\mvm\giant_pyro\giant_pyro_step_02.wav"
"sound\mvm\giant_pyro\giant_pyro_step_03.wav"
"sound\mvm\giant_pyro\giant_pyro_step_04.wav"
"sound\mvm\giant_heavy\giant_heavy_loop.wav"
"sound\mvm\giant_soldier\giant_soldier_loop.wav"
"sound\mvm\giant_demoman\giant_demoman_loop.wav"
"sound\mvm\giant_scout\giant_scout_loop.wav"
"sound\mvm\giant_heavy\giant_heavy_explodes.wav"
"sound\mvm\giant_common\giant_common_explode.wav"
"sound\mvm\sentrybuster\mvm_sentrybuster_explode.wav"
"sound\mvm\sentrybuster\mvm_sentrybuster_loop.wav"
"sound\mvm\sentrybuster\mvm_sentrybuster_step_01.wav"
"sound\mvm\sentrybuster\mvm_sentrybuster_step_02.wav"
"sound\mvm\sentrybuster\mvm_sentrybuster_step_03.wav"
"sound\mvm\sentrybuster\mvm_sentrybuster_step_04.wav"
"sound\mvm\sentrybuster\mvm_sentrybuster_spin.wav"
"sound\mvm\mvm_deploy_small.wav"
"sound\mvm\mvm_deploy_giant.wav"
I guess the numbers in Foundry meant something. 13 22 13 - M V M.