Randomize Turret damage?

What if (they actually decided to upgrade or change) the way current turrets put out damage (and IMO, they really need to upgrade)

There has been talk of adding back the lasers. Adding a %hp damage, even adding multi damage turrets. But what if they changed the damage mechanic to be either random/changing during the course of the game (hard to itemize against) or at least random per game?