saying the knife is for throwing is like saying the grenades are for throwing. I think this idea is much better than doing nothing at all.
but people will be annoyed. infact, the chainsaw will become the new noob weapon if this is done.
Allow me to make a prediction now-the term "chain monkey" will diffuse into soldat from unreal to describe people who get cheap kills this way.
Actually, i would rather have the chainsaw have one hit kills than creating odd additions like this. But hey, gotta keep an open mind.