Dreaming of Lights, Manager, Workplace, Attack, Shooting, Death, And a Baby

I had a dream where I saw my workplace I was sitting inside and the lights went out everyone was sitting and the lights went out on our floor and then my manager rush to see if he could fix it seem to be a companywide electric fault we were sitting in the he dark then we all got scared like was a terrorist attack we went out and lay on a roof top like mountain so the terrorist won’t see us there was a lot of us we piled up on each other and my mates from work were there a few people got hit by bullet and died and I was feeling like I might get hit then I decided to escape from there then a lady was in a cab she got stopped came out she had a baby with her she escaped and went into a restaurant and one of my mates escaped as well I saw her and she was telling me to get out of the place I escaped what does this mean?