I'd suggest limiting the Gwrench to 5 ammunition, with one 'shot' in each clip, and a 4 second reload? this spreads out the repair speed, meaning well co-ordinates attacks could still outpace a Gwrench reload? and bunny hopping in a refinery full of volkovs wont save the building when it really shouldn't, I suppose this might have other problems, but i think it might be worth testing or something