Glee Club held hostage during wedding

[dawnmia.livejournal.com]

I'm looking for a ff with the entire club. I think it was Kurt and Blaine's wedding and all members are there. One gets shot I think it was Blaine. The bad guys are wearing black and masks. They take Quinn and Brittany and they think Quinn is dead but she knocks out the one badguy/chick and wears the black outfit and mask and helps the club get out of it. Cops are outside negotiating. I think Quinn and Rachel get together at the end.