This instructable will teach you to turn your usb missile launcher in an autoturret which will find and aim at IR targets. (sorry only IR targets)
Step 1: What you need!
a bluetooth enabled pc
1 Usb missile launcher (duh!)
GlovePie (Programmable input emulator) You can download glovepie from: http://glovepie.org/poiuytrewq.php
A little bit of programming experience (not really necessary but, helps you understand the programming part better)