i've played for 4~ hours for the past two nights, and I don't think I've seen a hand grenade kill yet. seen tons of knockdowns, but not a single kill yet. anyone else feel that they're a tad underpowered?

I've killed plenty wif grenades. The bots do walk away from it if u dnt cook it though. Try the grenade shooting ability it works wonders

What part of "Grenades are not killing tools" did you not get?

They're made to be weak. Cook them, get Grenade Shooting, or get an Underslung Grenade Launcher. Grenades are made to knock people down, so do so.