"Just damage" is super boring.That's why there are very few mods that directly add damage. (block damage is a different beast)
Rate of fire "adds damage" but also costs more ammo so it's not that bad.
That depends. I find the MUCH more damage on a couple weapons hilarious, thanks to the ragdoll physics.
There is a downside too though. 3rd burst into a pig with my machinegun, and well, no bacon for you.
Without the burst mod in it, it's automatic fire, so you do waste ammo.
All kinds of legendary effects you could add, and/or legendary items.
Non-craftable, perhaps some even non-repairable.
Some useful, but PLEASE make some that are just downright silly. For teh lulz.
Pie in the face of the zombie and they just stop, flaile about squealing kinda thing.
Could also have things come with one of the useful mod effects already on it, but not using a modslot.
(gun with burning mod, or gravedigger.. pick with burst fire... heh)
Fun Pimps Hat (with feather): +1 to all attributes
and yeah, a Thunderfury with the lightning effect would be hilarious. Mobile electric fence.
Oh gods, the possiblities are endless with this.
(oh yeah, make sure it's moddable pleeeaaasseee)