Tell ya what. I'll give you an honest critique of each one. Maybe it will help, maybe it's what you're looking for, maybe not. But i won't bash your stuff, Ill be honest and give you some advice to go along with each one. it may give insight on why noone is commenting.
1. The video is just silly. Noones going to take you seriously especially after wasteing a perfectly good Coke. It may have been diet but c'mon, free music or wasted Coke (OK #1 was a joke review)
2.Track1- It's kinda just basic beats. There's nothing else added to it. It need some other types of sounds.
3.Track2- This one started off with a pretty cool jungle kinda sound, but midway that glass tinking just went off beat and got really annoying. Also same as above ,its all percusssion.
4.Track3- Ok this one sounded alomost exactly like an 80's boyband beat. Does this program do anythingelse besides drums and beats?
5.Track4- This one is accually intresting but not too applicable in a FPS. Sounds more like a puzzle game music. This one wasn't too bad.
6.Track5- This one sounded kinda good and industrial like, but it seemed like it needed some music or some sort of tune to break up the monotiny of the beat.
7.Track6- Ok insert the same review as Track5 and replace "good and industrial" with popish and hiphoplike"(notice good wasn't in there)
8. Track7- Once again it's kinda just basic beats and toward's the end it just goes way off beat. It seemed like you wanted some sort of climax there but it kinda flopped on ya.
All in all it seemed more like a "hey lemme get something out there real quick" kinda thing. They seemed rushed and not quite thought out. Your enthusiasim to share is really awsome and much appriciated, but take more time on them, make them longer and vary a bit. Just beats won't constitute much as music. Make sure they loop well especially if they're short. Think of a genre of game that you would be playing and imagine music that would set the mood of the game,and not just be music for the sake of having music in a game. By no means stop; just expand a bit. Experiment with melody and timing and I'm sure you'll come up with something decent.