Delivery is very interesting to me as it taught me how to use the interface to make finite state machine on AIs. I followed a very clear instruction from the following link https://unity3d.com/learn/tutorials/topics/scripting/using-interfaces-make-state-machine-ai
Since this assignment has no restriction, for the first time I tried downloading from the Unity Assets Store where I found this low poly design from Area 730. It is amazing and fits well with the concept of my game. The main idea was just to deliver objects while avoiding the patrols. But as I was making it, more and more ideas starts filling in. Lastly I came up with a scenario that works well with my concept. Give it a try and leave a comment on what you think.
Here is the link http://gamejolt.com/games/delivery/220254