Nukes should be far bigger than 5x5. I think 20x20 is OK, though I'd prefer bigger. And it should do something of some use, like kill off troops.
Resource nodes and enemy nodes (Aliens, Dropships, Darks) should be far more densely populated, and they should re-emerge within a few minutes of being depleted, and largely in the same 20x20 sector area. Enough of these deserts where you need to travel 2 hours to gather 45 minutes and 300K resources.
New player locations need to be scattered throughout the map, not just in some dense center where everyone is on top of one another.
Have your game designers go create some "Lords Mobile" accounts, play up to about level 20 or so, and then do a critical self-examination of your game and the differences between the two: Fun, shop, ease of use, realistic balancing, etc. "Lords'" big problem is that it is dominated by Chinese players who will spend $10,000+ to dominate Kingdoms. 150 so far. The pain of being the best, I guess.