I want to start off by saying I have seen little to no kills from fusion grenades. I have not seen more than a handful of grenade kills in my own games and twitch streams.
My current issue with the fusion grenade is that it: it is far too loud making it very easy for players to dodge them.
A way to combat this would be to add a normal Earth style frag grenade. I personally love grenade kills and the play styles that come from powerful grenades. I also think that the design of the Fusion Grenade shows opportunity. I think a feature could be added where one of the ends of the grenade acts like a timer dial, for choosing the time it takes for the grenade to go off; this would make for some great kills and skillful plays. This is just another feature that I think could possibly raise the skill ceiling for ION.
I obviously would love to see flash bangs and Molotov grenades, but I think those aren’t needed anytime soon. I would love to see everyone else’s opinions and what they think would make the fusion grenade gameplay better.