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Vice Admiral
The WC3 Hellcat only had a 120 damage unit gun volley compared to the Arrow's 96, and only had 100 armor to the Arrow's 80, and 220 shields to the Arrow's 200. In comparison, you lost 20% of the speed and 1/3 of the agility, and you carried two fewer missiles. As a result, the Hellcat felt weaker to me than the Arrow.
Well, that's 25% more firepower, 25% more armor, and 10% more shields, at the cost of 20% speed, and 33% maneuverability. Also, IIRC, the Arrow's hardpoints are limited to DF and HS missiles, while the Hellcat can mount any of the missiles. Those trades are actually very fair. It's really the Thunderbolt and the later introduction of the Excalibur that makes the Hellcat feel incredibly weak. I mean, for a tiny bit less speed and turning, the Thunderbolt gets a torpedo, a tailgun, much more shields, more armor, and more guns. And the Excalibur... well that baby just plain puts the Arrow and Hellcat to shame.