Current Problem - Fortresses in their current state are rather boring in that they tear everything apart except Bombers (and other Polycrystal hulls), to which they do basically nothing (0.05% normal damage). Many people think that Fortresses could be a lot more interesting and diverse in the way that they are countered.
Hypothesis - If we make Fortresses more interesting to combat, without lowering their overall power, the game will be much less mindless and more interesting than before.
Solution -
1. Change Fortress Reload Speed from 6 seconds to 30 seconds.
2. Increase Fortress number of shots by a multiple of 5.
3. Remove Polycrystal Immunity.
4. Change Fortress Hull Type from Ultra-Heavy to Composite.
Explanation:
Fortresses in their current state have to be hard-countered by Bombers because they do so much damage to everything else. However, this is problematic for 2 reasons:
1. Bombers are the biggest threat to your base, therefore wouldn't you want your Fortresses to kill them the most?
2. Bombers already seem to be the most useful Triangle ship by far, therefore it would be more ideal to have another Triangle Ship counter the Fortress instead.
By changing the Fortress reload speed (by a multiple of 5) and the total number of shots (by a multiple of 5), the Fortresses still do the same amount of damage, it's all just frontloaded into its first shot, then applied again every 30 seconds. To give a good comparison, a 30 second reload is not unreasonable for a defense, as Lightning Turrets (which are much more vulnerable) shoot once every 30 seconds as well.
Since the Fortress Hull Type has changed, the way to counter it is to absorb its first wave of shots with something cheap, then send Frigates in to fire off several rounds before backing out of range before it can fire again. In other words, the way you counter the Fortress is a lot more interesting (and skillful) than it was before, and will cause you to lose a lot more units if you aren't paying attention. The Fortresses' new front-loaded power can be countered by sending in a "diversionary squad", then carefully monitoring its reload time between attacks.
The new Fortresses would look like this:
Fortress MK1 - Damage 160,000x150. Reload Speed 30 seconds.
Fortress MK2 - Damage 280,000x200. Reload Speed 30 seconds.
Fortress MK3 - Damage 400,000x250. Reload Speed 30 seconds.
...and so on.
Conclusion:
Changing the Fortresses in this way will not reduce their power in the player's hands, in fact it will probably make them more powerful since they can hit Bombers now. However, against the computer, the player has to carefully prepare and plan their course of attack against Fortresses, and pay special attention against them, as opposed to the current "fire and forget" system in place now. In addition, Bombers' extreme overusefulness will be reduced a bit, and Frigates will become significantly MORE useful than they were before.