You can up a PT at a friendly CV task group, get some separation and practice attack runs on it. You could do that in the TA, but even better would be to set up your own custom arena. After creating your arena, you can go to arena setup and uncheck "protect objects" - that way you can hit (and sink!) your own units. You could also change ownership of the task group you just launched from, that way you would get fired upon for a more realistic practice setting.
