I've been using UDK for about a year now and there's so much you can do with it. Your looking good so far, there are a lot of tutorials online to do stuff like mesh painting, stuff with kismets and material stuff.  If you want really good feedback on your work go to sites like polycount or gameartisans and just look at the work others are putting up.  

Nice work. Like the mechanics and the design work. Wish it zoomed in during combat somewhat.

This is the first time I've looked at a top-down shooter and thought "Hey, that looks pretty cool!"

How much time have you put into this and what did you know about anything you needed to know to make it before you started (programming, modelling, etc)?
 
I wanna look into UDK during my holidays, too. I know some C and C++ and modelling in CAD programs but except for some stupid snake-clone I've never actually made a game and want to know what to expect.

Well im still learning UDK, and other programs to. But i would like to show how far i come in my game in UDK. This clip is from April.  
I haven´t had time to sit down to continue on with this game. But i will make it better and bigger :D As soon i get to spend some more time with my computer at home.   
And theres no sound, so i just added som freebeats and lay upon.. Because the program i started recording with sucks :( next time it will be better.