Laser camping was only really a tactic in Brawl and was based on matchup. In Project M you really shouldn't do it. That said, you can and should still use Blaster. It's an effective approach, combo starter and is good for just harassing your opponent and giving them something to try and avoid other than your attacks.
Wolf was tweaked in Project M to be more in line with the other Starfox characters so yes, he should be played aggressively (at least IMO. Pretty sure other Wolf mains would agree though). I'm easily not the most skilled Wolf main out there so I'll try not to give much potentially incorrect advice. Firstly, Shine is your best friend. It's an integral part of Wolf's (heavy) combo game. Learn to jump cancel it if you haven't already. If you're having trouble doing so, just persist. With time it comes naturally. Next, you're right on the idea that another key point on playing Wolf is lifting your opponent into the air. Shine, dash attack, Bthrow, Dthrow (on some characters, notably Bowser), Utilt, Dtilt and Usmash are some simple ground combo starters. Shine, Fair, Nair and Dair work as landing combo starters. From there, it's easiest to just JC Shine and do aerials but as you would expect, Wolf is capable of so much more varied combos too. Never neglect your options.
So yeah, TL;DR - Keep the heat on your opponents. Do long combos. Combos generally involve lifting your opponent up and lashing out at them with aerials.
Now that my job is done, please someone with more knowledge and experience come and give better advice.