how to build a good test bed?

So only record gun waves seems ok? And IMO the gun prediction of each wave can be evaluated immediately, since the result is already known. btw, are you optimizing hit rate overall (e.g. total hit / total fire of all battles) or robocode score? (e.g. average bullet damage per battle). I think the lattar should be better when bullet power selection is also evaluated (or when it is not disabled). But since in real battles hit/miss will also affect total waves per round, that would be inaccurate for recorded battles. So how do you deal with bullet power? imo using the recorded ones sound reasonable, although not perfect.

I optimized for hit rate. Bullet power was kept the same as when it was recorded.

And I saved/loaded all waves (for learning), but only did prediction using firing waves.