Basically the easiest way i've seen this match up is spam lasers if he gets up close he's probably crawled to get to you so you're f-smash beats d-tilt, and after one or two times of f-smash punishes you can switch up to a well timed phantasm, or just let him get closer and try and shield grab him or pivot or someting of the sort and then you get the chain grab when he approaches, but if he uses a platform to get past your camping then 1. you weren't camping to greatly, & 2. It works in your advantage and you get to just knock him in the air and juggle. If the Snake has a C4 on the ground a CG to spike will most of the time be a death for the Snake. Also like others have said if you get him up in the air or off of the ledge Snake has to either be clever, or the Falco could trip or something of the sort. Snake out ranges you but your campings gonna make him either hope for a good grenade game or make him get in close since spacing doesn't seem like the greatest option. Also it's true he can gimp your recovery pretty hardcore, but that doesn't seem too bad if he has an extremely hard time landing a hit on you in the first place, and you could probably get back by beating his aerials. Falco's lasers are ridiculous in this match, they can take out proximity mines, grenades(camping), make Snake approach, & cause decent damage from a pretty good distance. I personally don't see this match as 50:50 I see it as more as Falco's advantage, but I could be a bit 1 dimensional with this matchup.