Left & Right arrow keys to rotate "+ >" means "effective towards" (100% damage) "- >" means "ineffective towards" (50% damage) ">" means "fairly effective towards" (75% damage) Physical can work, but elemental smashers will delete you while you're only doing 50% damage, so it's only good for rocket launchers because it provides 44% bonus damage rather than 20% (with legendary perks).
I hope this helps with any confusion about elements. Credits Epic Games (Fortnite) yeet
