Ok so I'll explain basically how we do Wolf/Snake.
Like in alot of doubles teams, both players need to be very aware of their roles. We play a pretty complex strategy in that we have alot different situation that we use a certain strategy in. Basically our major goal against most combinations we play against is to get the "Walls of Elysium" going. It's basically camping in doubles.
The standard "Walls of Elysium" (Elysium is our crew before you ask), is just Wolf spamming the **** out of blaster/SH blaster and Snake lobbing grenades over the top of him. This doesn't sound like much but even in a 2v2 situation this can do some good damage to the opponents. The grenades are quite damaging by themselves as you'd already know, but the blaster adds a fair bit of unpredictability to it.
It's difficult to defend against, especially on a stage like FD, because you can pretty much have snake throwing grenades constantly, with less lag than usual, because the blaster will often hit grenades, allowing him to throw another one quickly. As I mentioned before, this also adds some unpredictability because the blaster disrupts the usual grenade timing. If someone tries to pick one up, they get hit with a blaster. If that doesn't make the 'nade explode, snake can just grenade strip, which means they take a blaster, a nade, and then potentially another blaster.
The "Walls of Elysium" is best space with snake's back to the edge. Even if somebody gets through our spam, we space ourselves so that wolf is just out of snake's utilt range. This cuts off alot of approaching options. If an opponent tries to jump over wolf, wolf uses uair, which will often force an airdodge to the ground, right into a snake utilt/ftilt. Get *****. While it's not necessary to have a ledge begind snake it does make it alot easier. HOWEVER, if snake has a mine behind him that deters opponents from going over there anyway.
A further expansion on this is to plant a c4 under wolf. The only downside to this is that Wolf must be aware of the timing and not be standing on the c4 when it explodes (duh). BUT if wolf gets a grab while standing on the c4, he can dthrow as snake detonates the c4. Wolf's hurtbox actually goes higher than the c4's hitbox can reach, so the opponent takes damage and knockback from the c4 rather than the dthrow.
If there is no c4 below wolf, he can bthrow to a snake uair or DJ nair really easily
Dthrow > Mine is lols.
We love dthorw utilt. Peopele seem to miss the tech more in doubles because there's so much going on so you can like dthrow someone accross the entire stage into a snake utilt. This can be enhanced if Wolf is stickied with a c4. Imagine dthrow, utilt, c4. :O
We also have several starting setups. Let W represent wolf, S represent snake and O represent the opponents. These setups are assuming you all start on level ground and are reasonably close like on SV or delphino or something like that.
IF: W S O O
Ftilt wall. Snake starts with an ftilt, wolf can SH blaster over snake's head (barely which is lols). This means if they try to do anything but shield, they will get hit by snake's ftilt. If they try to jump over it, they will prolly get hit by the laser, which will knock them back down into the ftilt.
This can be implemented decently on FD aswell but snake has to be a bit more careful because he'll actually need to MOVE to hit them with ftilt(god forbid).
IF: S W O1 O2
If 01 doesn't have a decent ranged attack that is also faster than wolf's ftilt, you can safely ftilt in most situations here with wolf, then go straight into "Walls of Elysium". On FD it's usually more practical to go straight into walls of Elysium.
If we don't have "Walls of Elysium" going, generally Wolf does damage while snake stock tanks, then when we get them to a decent % snake throws in an utilt, GG.
Also snake dthrow > wolf charged dsmash is good. We seem to hit that a fair bit and staling wolf's dsmash doesn't matter AS much because you have snake there to kill if necessary.
Using wolf to control the air and snake to control the ground is a good idea if you're near eachother.
I'm sure I'm missing something...
Anyway that's the basic idea...