Recently I have downloaded the industrial craft mod since Tekkit takes a while to update. I spawned a nano saber and' quantum armor and than faught the wither. I died and I spawned A lot of zombies and than died. I thought to my self "Why is this being so terrible?" I thought you may of degraded quantum armor so I went on tekkit and faught the same amount of zombies and I killed them all easily. Also i noticed the nano sabers power was depleting. Please change it back! It was the most fun part of IC2! I know you probobly won't see this but please! 
/ 
= Not Good.