This is what I've been working on longer than I care to say. This was completely created in Unreal 4's Blueprint Scripting. The Zombie and it's animations are from the market. The player animations are from mixamo. These are not intended to stay in the game, but they helped save some time in the making of this prototype, and I'm the only person working on this project right now. This was a lot more programming than I thought I was going to have to do. So far I'm pleased with how it is moving along.
https://youtu.be/l_qnNuuuPTA