Talk:Construction/@comment-202.67.46.9-20140227045641/@comment-24155103-20140227050445

3-2-A is the default grinding spot, very easy exp and cheap since you can use a sub to tank it fully, just make sure your fleet is capable of sinking everything.

2-4-A is also a fairly safe spot with a sub, but the CAs can attack randomly so repairs are more troublesome, it's not too bad if you don't have 3-2 unlocked yet though.

Some of the later maps are "decent", but aren't very cost-efficient.