Get him in the air, wait for an airdodge/grenade reversal/aerial and punish with fair/uair - fair is better because its huge hitbox is more reliable though uair hits from different angles (especially if Snake is slightly behind you). Don't grab too much, at least not from a neutral position...Snake ftilt >>> any grab. Only grab after he whiffs an aerial or when he lands in general (you can also try to grab him out of the mortar slide though it's difficult and risky). Ftilt2 can be easily punished with fsmash and AAA is very good against grab happy Snakes. Wolf has a solid roll after Snake dthrows you but avoiding grabs is always better. Focus on being in the air and use jab1 a lot when you're on the ground. Abuse your massive mobility advantage to avoid explosives. Blaster beats mortar slide. Don't waste your dsmash too early and stay out of utilt range...that's about it.