A total rework would probably be best, but if you want to retain the “spirit” of what it does now, you could try something like making i recharge the grenade melee and class ability for ALL nearby gaurdians. Could be fun for dps phases where everyone gets an extra nade for damage.
Only had a chance to play a couple missions in VR so far but from what I’ve played the devs have done a fantastic job. Rock and stone!