This video is two years old, how did I not find this sooner!? I mean really, I check youtube every now and then because not everybody posts here to let me know, I kinda just stumble across it. It's a shame :(
Anyways, it's a fun playthrough from a Australian youtuber who has his little brother? I think playing Left 4 Dead in the background which tickled me.
Thank you darkgladiatorgaming! I wish I found it sooner...
(I also found a UK Let's Try of Infection but can't seem to find it anymore otherwise I would post that too. It pays to search your own game every once in awhile!)
I'll mention too that he has about nine or so other videos for Infection after the first, so check out his channel on youtube you just might find your game there!