Not sure what part you are having trouble doing. Here is a simple project with 3 "missles" firing and flying in different paths. Its the same model follwing one of three paths. The start and end is done by adjusting the ease. The end is the explosion sprite material on the cd.
[attachmentid=15449]
[attachmentid=15450]
hope this helps if not maybe re-ask the question
almost forgot this was in V13
rockets.mov
rockets.zip