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To form a correct opinion about the capabilities of a particular faction, you need to read reports, as you said (let's switch to "you"). But even more benefit can be gained by playing against a strong player and reviewing their save files, preferably daily ones. That's how I more or less learned to play as Fortress and even achieved several victories against very strong players.
By the way, can you show your save files from games against strong players?
Now I will try to analyze the strategies for playing as Rampart in this way. I consider it a quite strong faction, capable of successfully opposing all others. And
I don't understand where your strategies are?