Why not bring runner back with an effective weapon and if people get so annoyed with double jump why not make a proper double jump instead of using the TF2 Scout Playertype.
Here is a good idea why not make it so the second jump is slower than the first?
I personally liked runner not because of his main weapon, but because you can get away from the boss instead of being a pawn and his ability to nullify fall damage thanks to the double jump.
Also I'll be coming back soon, I recently made a huge switch from 32bit to 64bit, that should of been done a very long time ago, I am still setting up tons of stuff, 64bit Blockland is one of them.