Smoke simply does too much with just one node Smoke (without any perks) should only take away the HUD and blind you If you use venom, it gives damage when you are inside the smoke itself The perk that allows to put smoke traps should also slow down the enemy when the bomb goes off/you throw it to an enemy, and with the perk "lockdown" extend the amount of time it can stay next to a wall. THAT is more balanced. Right know, getting smoked --> 1% of survival Edit: they could increase the radius to balance it out