Feature request: A starting battle position which places battleships behind

```
In the original game, there was the fifth startup position (middle) which
placed battleships behind.
Now all positions (including the fifth) places battleships to front.
Battleships usually have the most heavy weaponry, so they should be at the rear
of the army to do distance battle and they carries the tanks, so they should
not be at the front line.

```

Original issue reported on code.google.com by `kli...@gmail.com` on 17 Jan 2014 at 11:14