Just because a counter isnt "easy" doesnt void the fact that it is a counter... Not all things are easy to counter - this is the purpose of finding a viable and effective build - to give you an advantage. Regardless I find that my speedy/persuader/armor pen ammo = strafing around the mighty/armor/hard target works just fine, if i have my hatchet or boomerang up ill start the fight with that, As other posters have stated "hard target works well vs hard target" - use a similar loadout and outplay the other guy. Deepfreeze is an easy fix to any mighty or burly build as they are easy to hit. Falcon Blade with cuthroat is also a viable way to beat this setup. Splash dmg with explosives while not standing directly in the enemies line of sight is effective regardless of your foe... The counters are truly endless and are up to the player, remember the rock/paper/scissors nature of this game and expand the items you are good with - dont expect that because you have one solid loadout it will counter everything - switch up your loadout based on the team you are fighting.