Every time I see one of these threads I see blame being assigned (not nasty blame, just general blame). One of the first things you did was blame COD gamers.
It isn't their fault. I've said it before, and I'll say it again: unless someone is coming to your channel forcefully trying to drive subs/views away, YOU are the only cause of success/failure.
Very briefly:
Channel Design
Your banner needs re-doing. Generally it looks fine, but add a border or shadow to your name, it kind of merges with the background a little bit. Your avatar and general layout (playlists etc) looks fine.
Commentary
I watched approx 23 seconds of your most recent Minecraft video, and switched it off. You were talking so fast and mumbling over your words so much that I couldn't catch a single word of it.
Slow down, take your time. Don't speak to us like you would your mates in passing - present your show to us like you'd hear a radio presenter or tv presenter speak. Practice makes perfect, but there's no rush to get all your words out at once!
Video quality is decent, no qualms there. Daily uploads is good too. The titles all seem okay and you have a nice range of games to keep people interested. Video length seems decent, not too long or short.
That was it really. Your commentary from my first impression needs a lot of work. If you look at the popular guys - whether you like them personally or not - there is a REASON they are popular. Their delivery is very professional. You can understand what they say and they don't just dictate what's happening on screen 'ok so I am walking through this door, okay I am gonna build this wall right here'.
Hope that helped.
