Just a few things I noticed.
1. Cut out the parts where you're running around looking for enemies.
2. For your description box add some more.
2b. You can add recording devices or editing programs.
2c. Add the music titles in there as well to prevent people from asking.
3. Try to pick music everyone likes (varys between people obviously) but take feedback and see whats most liked.
Other then that pretty good. Obviously with practice the videos will only improve.
I tried cutting out most of the running around but with enough content that doesn't make me look like I'm cutting out the bad parts.
The song artist/song is in the description as well as YouTube telling you what it is.
My music library is pretty limited to my style but I will add music to recommendations.
Thanks for the feedback.