I used to have the same problem with my writing when I started off. And the solution I found was something in the line with what chickenfreak said. Too much summarizing. Your plan is a little over 2 pages per scene and that sounds way too little considering what's happening so my guess is that you summarize instead of actually showing. Try to add more than just plain action; thoughts, sounds, speech, emotions, pay attention to details like you watch a movie playing in your head and try to make it come to life on the page. It takes a little practise.