[Balance idea]: Balance battleships compared to Aeon battleships

Based on community suggestion from [Discord](https://discord.com/channels/197033481883222026/1529019624044236920)

## Reasoning
Summary of the balance situation we're trying to solve:
> Even after the mass cost nerf for Aeon BS they're still too good because they get to dodge with much higher speed and turn rate, and deal extra damage with best muzzle velocity and accuracy.
The range downside for Aeon doesn't seem to be effective enough judging by the sentiment around aeon bs.
Aeon BS is particularly strong against UEF battleships, which have low velocity, low fire rate projectiles and high cost, so UEF takes too long to win navy against Aeon.

## Proposed solutions
1. Give non-Aeon battleships more muzzle velocity and turn rate to reduce Aeon's advantages while making BS a bit more fun to play.
2. Nerf Aeon battleship's stats
3. Assuming only UEF heavily struggles against Aeon, buff UEF battleship against Aeon battleship and just slightly nerf Aeon.

[Discord discussion](https://discord.com/channels/197033481883222026/1529019624044236920) has more details and arguments.
Solution 1 was refuted in favor of 3 because, in short, 1 would buff battleships to all be too similar to Aeon.
Solution 2 didn't get favorable reception because it was just nerfing Aeon instead of making battleships for everyone more fun to play.

Start with the issue's reasoning and the linked Discord discussion, especially the arguments favoring solution 3. No code entry point or test is named; implementation cannot be scoped until the UEF-versus-Aeon change and intended balance outcome are agreed.

Written by the indexing model from the issue text.