It's hard to really categorize Smoke. He has anti-zoning strategies, but you're not going to do any serious damage that way. You can rushdown with him, but unless you're cornering your opponent, your pressure is only going to lead into some chip damage and tick throws. He has great footsies, but anti-footsie characters can shut that shit down (Reptile losing to Smoke 7/3 is a myth).

All that said, I guess I'd call Smoke a mix-up character with low-risk pressure. Winning with Smoke means stripping away your opponent's options, applying safe pressure strategies, and blowing up your opponent with resets and correct guesses. Use your smoke bomb to limit your opponents footsies; use your jump kick into air throw to beat out anti-airs following into a whiffed teleport to start your oki game (which is very strong); anti-air with standing 2 and follow up with two dash down+1s into Smoke bomb.

As for his normals, dash in and down+4 is good for mid-range and dash in and down+3 is good for up-close pressure. Foward+4 is is slow but has decent range: use it for pressure if your opponent isn't jump happy (but if your opponent is jump-happy, forward+4 propels Smoke far enough for the cross-up to whiff. Neutral Jump Punch if you read the second cross up attempt).

As for combos, my bread and butter is 3, d+1, 2 dash 3, d+1, 2, dash 3, d+1, 2 (delay) Smoke Bomb, forward+4 telepunch. It's actually not his best combo, but I use it cause it translates well from offline-to-online and it's good for getting your opponent into the corner. If that's too hard, try 3, d+1, 2, dash 3, d+1, 2 dash, 4, Smoke Bomb, forward+4 telepunch (or a second Smoke Bomb if in corner). I think this does 38% damage after a jump-in.

And if THAT'S too hard for you, 3, d+1, 2 into jump kick + air throw does around 25% damage and you can whiff teleport afterwards for oki. Back+2, 3, Smoke Bomb has it's own setups, but I can only write so much write now. In a nutshell, use that string in your footsie game.

And the so-called reset is just a government lie invented by the Czech Republic. It's not real.

Smoke's gameplay is quite easy to learn yet it takes a lot to master him.