Haha
That sounds epic
Not sure what 40,000 range is but assuming it doesn't work on an entire Star's gravity well; that would be hilarious
This is a great idea, make it an addition upgrade to the weapon systems, such that it adds another bank of weapons that are only strong against structures
I think this would be balanced by the fact that you have to use an upgrade point on it, it wouldn't require additional research but would require lots of money which is hard early game
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As for the Vasari Rebels being overpowered late game, I think that's their point of swag, they get diplomacy and try to make friends and otherwise turtle to survive the mid game, then late game they help their allies with phase nodes and jumping starbases
Vasari Loyalist point of swag is having all they need on their capital ships, so in a cramped world (not enough logistic slots) they have an even better late game than the Vasari Rebels
BUT early game TEC economy is pumping out ships, especially torpedo cruisers (at a much greater number than the Vasari nanite swarm equivalent), and just Zerg rush the Vasari
MEANWHILE Advent are pushing their culture and the Vasari are losing planets, even if the starbase is holding the planet from being colonized the Vasari can't keep up the trades and they can't attack the Advent because this is before they have their mega-death-fleet-starbase-combo
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I like to random my race, but if I really wanted to win, I would go:
Vasari Loyalist on a Tiny (2 planets 2 asteroids each) map, build capital ships and turtle until you out-research and out-economy the enemy
TEC on single star medium map, Loyalist or Rebel would depend on Pirates, but either way I would aim to expand quickly and get economy going so you can be aggressive early-mid game
Advent on a single star medium map, or muliple stars but with less planets per star, Loyalist against TEC, Rebel against Vasari, once again aiming to expand quickly and get economy going, but also pushing culture especially if there is a unoccupied star, if you can setup quick you can stop others colonizing just with your culture
Vasari Rebel on a single star or multiple star so long as there is lots of planets, make friends and turtle until the ol' kostura-cannon-mega-death-fleet-with-starbase-and-allies trick
But I am definitely not great at this game so I could be way off
My point is that Vasari have their late game advantages but I think the only way to come close to guaranteeing yourself surviving til lategame is to have a TINY map with VL, or a HUGE map with VR
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tl;dr 1+1=42 Something like that...