The current pre-release of the client ("pioneer" in the version) is only compatible to itself. So you can only play with other testers. Please be aware!
If UEF is meant to have the theme of "high hp" and "tankiness" Why do they have the worst shield in the game.
On a more relevant note, Percy should have 8k hp and bricks 7k. Then we have a nice follow through with factional stats and nerfing t3 in general is never bad, because it means more relevant t2.