GoI has a practice mode. You are able to replicate all sorts of specific situations and I think that's really helpful. However, I don't think it's advanced enough.
The dummies are easy to hit, repetitive and, well... just plain dumb. The only available map is a big, wide open space that offers no maneuverability practice for pilots, and while you can make your ship a flying bag-on-fire with a handy press of F5, it's not nearly the same as repairing in high stress PvP matches because the AI are to stupid to put pressure on you (and they're very easy to out-maneuver).
I would really like to see some sort of advanced practice mode with very specialized options for certain roles. smaller, faster targets for gunners, an obstacle course for pilots, and more guns shooting at your ship to help the engineer prepare for high stress situations.
Maybe new blimps, the option for an even more aggressive AI, new maps, and perhaps an option to set up specific situations before the game starts and save them as repeatable presets (like how football teams often drill specific scenarios that assume the position of all players involved).