Elimination/Alaska Bug

okay well im not sure if anybody has posted this yet "if so im sorry" but today i was playing in elimination at alaska and me and my team were winning and all of a sudden i got killed by an invisible man and we couldn't see him or hurt him he can just keep killing us and winning his name is harryphoter this will get very annoying if other people find out how to do it Please fix it.P.S forgive me of my grammar =p