hahaha well that escalated quickly.. usually im the one with the quick temper!
How do you defend against Substrate Artillery frigates when you already have guns and smarties already up? I just got my ass handed to me on a ranked game when all he did was park his frigates outside of my guns and smarties and destroyed everything. It should be a simple 1:1 ratio, you get to shoot me and I should be able to shoot you. Parking yourself outside of range as a substrate is crooked IMHO.
so obviously ur talking about the SS siege unit, the destructor, as u know by now it can engage both buildings (very well) and units (ok vs light stuff) in almost all games u need a siege unit that is effective at destroying buildings, to stop people (maybe like u) from just turtling and making an unbreachable defense which would lead to a stalemate. think of destructors as catapults in medieval days. PHC (as mentioned) gets a superior version of the destructor called an artemis, that fires missiles at units or buildings. it beats the destructor in both departments, for the same price. so if anything SS players should moan that PHC is OP..
as others have mentioned, PHC can build their own static artillery, which has tremendous range (3500) compared to the destructor (1500) u can build arty, but they are slow and expensive to create, but theoretically u could make ur unbreachable defense that u so crave using artillery, drone bays, radar and those anti dread cannons. but then the opponent will either flank u or bomb u. either way, defence is not best thing in the game, the game favours offensive behaviour, and map control, so the sooner u learn to get out of ur base and contest the map, u sooner u will start winning battles. currently the PHC is actually considered by many (most?) players the stronger of the 2 factions.
unfortunately in the ladder u will face a lot of players higher skill than u, but usually they should be of relatively equal skill level.. so once u apply some basic ideas u should see the destructor is far from OP..
from the sounds of it u are being beaten by the enemy rushing for map control, so either way u would lose to their superior economy. that isnt an easy problem to solve, it will take a bit of learning to beat a good player who rushes well. either way, SS is certainly not as OP as u think. it is most likely from a large difference in skill level that u are having these problems.