Revert "fix crash with artillery"

This reverts commit 6f6b25cef9e4a96063d7bfd8ee66bc4c3db625a6.
Revert "aiming hint for artillery ship"

This reverts commit 7042f94dbf88511119fabf32d16abfea7ecedda9.
Revert "manual pilot ranger ship has helper line"

This reverts commit d6a1eac44df4453cf11ba4893adde0607ea1778b.
reverted aiming hints. I don't think it helps.