I'm looking for some general advice, and you seem like the people best-able to help. I'm fairly new to the UDK, but I do have experience with several other 3D engines, with Flash/Actionscript, and with OOP. One of the most difficult things about teaching myself the UDK toolset is that I don't really have a sense of the…
Try and figure out how weapons are put on the screen. Find how the weapon mesh is specified, (the name of the variable in the weapon object) and then find the references to that variable. Then one of them is most likely going to be making some kind of actor out of it with a stuck-to-screen property somewhere.
here ya go :) neat UI stuff in actionscript 3.0 http://udn.epicgames.com/Three/Scaleform.html if you havent read this, you should. will help with how the engine classes are setup. http://udn.epicgames.com/Three/MasteringUnrealScriptBaptismByFire.html