Nice pic.
Also, it should have some kind of AI so that it would walk to players and blow up.
Perhaps consider making this as an AI?
Sadly, I made it simply as a prop, I do not have a clue as to how to even animate a 3D model, nevermind make an AI.
Anyone else is welcome to do it for me though. The resources for this file are freeware and if you'd like the model, sound, or w/e just contact me with the request. I'll send you a link.