nice little video mate, and you have a nice voice to listen to so thats a plus for breaking in to youtube, but yeah definatly break in to higher player games when the basics are down, but i can totaly see what you mean trying to show people everything in a structured manner and not forgeting what you had planned next is probably very hard when you are getting shot at all the time, also in response to the zombie agro distance question its very much not something that can be shown, as its not a very solid mechanic all the time, zombies will miss you 99% of the time at a certain range but there is always that 1% that they will somehow smack you anyway, agro is a little more predictable but at the same time still seams something you want to air on the side of caution, just try not to get to close, move behind zombies and get prone if you mess up/ need to move past a very close patrol and listen for louder sounds as this means RUN!
