Top-down multiplayer shooter (WIP)

I wanted to figure out how to make a multiplayer game and this is what I came up with. You play as a cop making some sweet carnage with his cop friend (or alone) during a zombie apocalypse. This project is using Unity's HLAPI (and later the community update / remake known as Mirror). I'm planning on eventually getting back to this project whenever Unity release their new multiplayer networking system! Can you recognize some of those sound effects?