Waters of Life - broken battle music

[OverwatchPro]

I installed recently, and so far, everything is running fairly smoothly, save a few crashes/freezes here and there. While trying to do the Waters of Life quest in DC, a problem I can't seem to fix is occurring. When the Enclave show up, a new battle music track starts every half second or so while the game is unpaused. While paused (in Pip-Boy, console or the menu screen) the music will continue like normal, until the game is unpaused again - and the music "loops" start again. This keeps happening even after the quest is complete, and the only way I avoided this is just by restarting the game and loading a previous save before the quest. As a last resort I tried to use console commands to complete the quest, but I'm having trouble getting the commands right. Any help on this issue would be appreciated, and I'll post the text file with my load order below.