Wait, the auto shotguns only do 80 damage with all the pellets hitting? Make it at least 110/120. The Remy should have like 140/150, but (obviously) fire slower.
And yes, I've never been able to kill anyone with an explosive other than the RLs. I've:
-Hit a person directly with a hand grenade, which then went off 5 feet away as they dove for cover, they didn't even have a pain emitter
-Shot a building out from someone's feet with an M79, yet again, no pain emitter (that was you, GCat!)
-Almost directly hit someone with an RL and they barely got hurt at all
At this rate, the smoke grenade is more useful than the hand grenade. I'm not saying it's useless, but I've yet to have it benefit me, even when using it correctly.