Meh, there are too many gaming channels. You need to market yourself to an audience. For example, add more intriguing thumbnails, make more interesting commentary, talk to people to get your channel more attention, etc!
To get a subscribe button, you need to find your unique channel ID code. For more help, I posted a forum about my channel. The guy explained it there. As for the Freedom partner thing, go to their website! :D
As of right now, my goal is 10,000 subscribers in the next couple of years. This is goal is mainly because my channel lost its monetization rights due to a traffic error in 2012. If I increase my number of subscribers and appeal this, there is a higher chance that YouTube will give me these...