Most of Snake's projectiles are kill moves, though. What you describe sounds more Young Link in Melee. Lots of zoning tools, borderline zero kill threat (down-smash is pretty much all he has as far as consistent options go).Mega Man really reminded me of Project M Snake, to be honest. Great at damaging with projectiles, not so great at finishing off the opponent. This could be because it's just plain harder to kill in Smash 4, but he really did remind me of Snake a little because of that.
EDIT: I misread your post--I was thinking of vanilla Brawl Snake. My bad.