This references some sound and music files which did do not play in the previous released version. Copy this file into C:\...Far Cry\Mods\FirstContact\Levels\ level2 This should fix the problem. The Level2 experience will now be a million times better! :P Apologies for those who have already played through level2, please try it again with this fix :)
Dev team didn't know .cry file doesn't affect game? .cry file is "for editor". Not "game". So we need to export on editor before play game.