If a player in a war knows your exact ground defense percentages per say, then they can calculate their own skills and see if they have a chance against you or not. There’s a big difference and a clear advantage in knowing someone has 70% GD or 35% GD. A cartel can easily set the right matchup accordingly with this info. I’ve personally no deployed a player with GD x7 and I’ve personally got rolled over by the same player when he upgraded his GD. Big difference in knowing skill percentages.
First of, there's no such thing as 35% GD but I know you said it for the sake of the example , maybe that's your problem with counting the percentage first place thus losing in attacks.
Secondly, if a player have a higher GD just laying in his cave , he will always UPGRADE and APPLY it , did you ever seen someone have 56% ground defense and waited till he manage to exploit the game and say : am getting attacks from high end sicarios, Let me pump that GD to 70% , do you find the logic in this?
Thirdly, you can imagine the amount of time and effort, to talk among X amount of players to see which player can take the 70% ground defense guy and which can't? Am sorry you are just talking purely out of thin air, and scenarios are beyond being hypothetical....
Don't let me start explaining how 4 Diego with full missile damage talents or 4 scorpions with full FB talents can't take a base simply out of startigical faults. Buildings arrangements , damage calculations, ESPINA effect , etc etc
And don't let me start explaining how it's illogical to start arranging 10 players to attack another 10 players based on what GD talents they have. Because I can stay here till morning proving that it's not a HUGE DIFFERENCE as you imply, DON is fortifying finca Now, if not DON then the talent of Don is obtainable Now through roll-out, missiles are getting boosts. FB are getting boosts, only few of the FEWEST calculate GD Now, because it's always either 8% X amount of sicarios or in extreme cases is 12 X amount of sicarios, it's not that difficult to calculate it really, you got an error threshold of what, 10 percent? Okay hire a 1 strong scorpion or Diego with full talents and you are set up and in safe side !! See how difficult is that?