Get rid of waveguns

[Sam Guivene]

Going to have to agree, they seem to be from the older bits of code and need some adjustment or just plain removed.

The shots travelled at least 20 tiles last time I used it.

Oh, in that case yeah, why not nerf them into something more amusing than practical, like something that makes things oscillate or some crap or shakes the screen and is in general annoying.